Day 8. After doing AoC for a number of years, I pretty much knew what to do here for Part 2
parent
f6cb14a5cf
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1e6bfbbb6e
GPG Key ID:
AB49BD6B2B3A6377
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LRRRLLRLLRRLRLRRRLRLRRRLRRLLRRRLRRLRLLRLLRRLRLLLLRRLRRLRLLRRLRRRLLLRRLRLRRLRRRLRRRLLRLRRRLLRRLRRRLRRLRLRRLRRLLRLRLRRRLRRLRRLRRRLRRLRRLRLRRRLRRRLRRRLLLRLRRLRLRRRLRRRLRRLRRLLRLRRLLRRLLRLRRLRLRRLRRRLRLRRLRLRRRLLRRLLRLRRRLRRRLRRRLRRRLLLRLRRLRRRLRRRLRLLRRLLRRLRLRLLRRLRRLLRRRLRLRRRLRRRR
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RTF = (TRM, KNP)
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FNJ = (DRR, MJH)
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KNM = (CGF, LSP)
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MDH = (CMN, VKC)
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VKM = (FLM, SNG)
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CMK = (JNV, PHR)
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XJN = (GLC, SXG)
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MGJ = (GCQ, XFC)
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VKV = (DCV, QND)
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HJR = (JMR, TKR)
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QDR = (NNR, VBQ)
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NGT = (QPS, JRL)
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LNP = (XLG, HJN)
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TRT = (CBR, BGZ)
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QMP = (NTN, QPC)
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LMV = (CGS, NGH)
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FLV = (QMV, QNL)
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RHV = (BGC, RTF)
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SLD = (BSP, BNH)
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SNK = (XCJ, QGG)
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CPM = (RHJ, TKJ)
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JGS = (XPM, FRL)
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MFC = (DFM, HHP)
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TDP = (FCD, RRJ)
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JSS = (TQN, PTG)
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XBD = (RTF, BGC)
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NLH = (RBF, MKL)
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MTV = (JCJ, BNV)
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BSP = (RMB, GLP)
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RBD = (MGM, RBG)
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KGT = (BDQ, KBL)
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SCC = (CXH, PJD)
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SST = (HCP, HVM)
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MVK = (JJL, LKV)
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LLV = (KSH, TSN)
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CDK = (TDR, GPN)
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FQL = (HKL, DLZ)
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XSQ = (NBX, VTC)
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JGV = (HFL, PSV)
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PCH = (FXX, QGP)
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PMJ = (VHS, SMQ)
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VTC = (CTB, HPS)
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SPM = (XSD, FFP)
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BCC = (XGG, VRC)
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LPP = (SMD, SRF)
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DDS = (XJN, NNQ)
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HNH = (DXB, SPC)
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CNH = (TCP, GCL)
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XDP = (DPP, CPM)
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VBX = (XJN, NNQ)
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HCK = (NRF, LBG)
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PXX = (HCX, PBL)
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XKV = (HRB, HGC)
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CHH = (RHT, KKX)
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PPN = (NXV, PGP)
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TKJ = (CSL, VSS)
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HCP = (HDT, NVR)
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JMM = (CTM, FXL)
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XMF = (JVP, BBV)
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QXD = (XHV, PGF)
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KNP = (NNC, PHX)
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NKR = (DTK, DLL)
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RLJ = (NKB, QQM)
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FKG = (KSG, RDQ)
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VKF = (GQH, DJQ)
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LKB = (FFP, XSD)
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LGR = (FJT, KHV)
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HJN = (DXT, VSG)
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JJR = (GPN, TDR)
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PKQ = (PBG, XSG)
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VGT = (RRK, PJT)
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GJR = (CTH, HML)
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BKV = (HTL, XKH)
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PGR = (SPV, LFG)
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TKX = (FHJ, SJD)
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RPF = (CML, XXS)
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DGP = (BDQ, KBL)
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PPX = (JXH, TKL)
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VMJ = (HLL, FHX)
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GDK = (SDR, TBL)
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RXG = (NNX, JCB)
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DLN = (RLJ, FPL)
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MJH = (TXS, PXX)
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QQD = (THQ, GJN)
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NQS = (CBF, FQL)
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SLK = (MLG, MGJ)
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KVR = (GDB, VTQ)
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DHC = (GVG, RTQ)
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FLM = (TRK, NQM)
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SPC = (RNS, BSB)
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QMT = (LFB, BSX)
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GCS = (LMB, QXS)
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FVK = (TDP, XMK)
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RTQ = (DSC, HDP)
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PCG = (DKM, KDJ)
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DKM = (PKV, RXG)
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HCX = (MRM, GRM)
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NLM = (XDX, KNM)
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PKD = (LVC, QLT)
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QPD = (MNT, ZZZ)
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TSN = (RQF, BSG)
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VLC = (TBH, BNQ)
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VVD = (MTV, JVT)
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GXD = (JMM, HSF)
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TPT = (TLL, HFC)
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MRM = (VTD, KVR)
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TFF = (RPF, MSH)
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PBJ = (BMM, LTG)
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HGC = (VGT, TRG)
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BFM = (CDL, KLQ)
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TRM = (PHX, NNC)
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CCN = (BGG, MVK)
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FCK = (KBP, BRX)
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GDM = (DQR, HRH)
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PTG = (QDR, JRK)
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SCN = (MRX, LNJ)
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HSF = (FXL, CTM)
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SQN = (HFS, KXS)
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HCQ = (SCN, CPR)
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FSK = (RVX, DGG)
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VTQ = (CGD, QHG)
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DPP = (RHJ, TKJ)
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RRK = (BFN, QNH)
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GTC = (GTP, KGJ)
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FSN = (DRR, MJH)
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GKC = (KQX, QSP)
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CPN = (RVX, DGG)
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KBL = (BVV, GJR)
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CTM = (SLD, DRK)
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LFR = (CHT, PCB)
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SNG = (NQM, TRK)
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KSG = (QFM, QCT)
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DSV = (NKR, VMK)
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GNB = (CPN, FSK)
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HKD = (XBB, GFV)
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NQM = (HNH, CCR)
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NJS = (GVV, LPP)
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DCG = (LCN, MGN)
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SVN = (CBR, CBR)
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FXX = (FNJ, FSN)
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DFR = (GDK, RXK)
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KMQ = (KXJ, LMV)
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PHX = (QKS, KPF)
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LKM = (QQD, VGN)
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JSG = (LGD, VVD)
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MGM = (BQJ, CTP)
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PDF = (MJB, CPQ)
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NGX = (MVS, PBJ)
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QPC = (LJR, RGZ)
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MRJ = (GJB, TJG)
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PCR = (CVR, MSD)
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SSF = (PFK, TKC)
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RJP = (LSN, NJS)
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QMS = (MVS, PBJ)
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HCV = (LNP, BKR)
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HXH = (MNT, MNT)
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DJD = (MMQ, PLB)
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PKV = (NNX, JCB)
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LGX = (KBP, BRX)
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GHT = (XSQ, HSD)
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BGG = (JJL, LKV)
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NRF = (SSK, NTV)
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QSV = (PPV, VJB)
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LHP = (PTG, TQN)
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VGN = (GJN, THQ)
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PBH = (GXD, NNB)
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MMJ = (JKS, CMK)
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XVC = (LLV, GRL)
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RST = (SJS, BRN)
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BDQ = (BVV, GJR)
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HVM = (HDT, NVR)
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DGK = (NGN, VDN)
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GQN = (KSG, RDQ)
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MKL = (DCG, QDT)
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BFL = (MMQ, PLB)
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MSD = (DNM, MCC)
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DFM = (NSC, FLV)
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DJQ = (CBS, VHP)
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RJD = (MGF, SCR)
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XQK = (VBX, DDS)
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PGP = (KGT, DGP)
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TKL = (LKM, MGV)
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RVX = (PKD, MNK)
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GJB = (HDG, XTV)
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HFG = (RJP, VXB)
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BSG = (HXH, QPD)
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KXS = (MKC, CDM)
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QKV = (XMF, CJX)
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XKJ = (XQK, RDH)
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VHS = (SNK, PHP)
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GRM = (KVR, VTD)
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GLC = (KJM, QHK)
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KHC = (LMV, KXJ)
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NTN = (LJR, LJR)
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BFN = (BCC, GPK)
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HML = (RLX, MDH)
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BTD = (HHQ, XTH)
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DRR = (PXX, TXS)
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BBP = (SVN, TRT)
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FHX = (VRK, JQL)
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JXH = (LKM, MGV)
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DNF = (HFS, KXS)
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MNT = (DCX, FDP)
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MSH = (XXS, CML)
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BNV = (JPL, MPG)
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KGJ = (NSL, QQC)
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BKR = (HJN, XLG)
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KJG = (LTM, RNL)
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QGG = (QDQ, HVT)
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MNK = (LVC, QLT)
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NNB = (HSF, JMM)
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XBF = (GQH, DJQ)
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GQH = (VHP, CBS)
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KJM = (FGM, DML)
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MRX = (BFM, VTN)
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CPR = (MRX, LNJ)
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LRP = (MCX, LSD)
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QHL = (VLP, VLP)
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VKC = (TGM, DNT)
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FRN = (LGX, FCK)
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MRR = (PCG, GTG)
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QTT = (NRJ, CKC)
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XVK = (QRQ, MRJ)
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SJD = (BGN, XKR)
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CKT = (KPH, MRR)
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HFB = (JKS, CMK)
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MJB = (RSX, XVC)
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HSD = (NBX, VTC)
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HHQ = (VPR, TNF)
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KQT = (FHX, HLL)
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BMX = (GQP, VKM)
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BKK = (CNH, FNN)
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CXV = (XMF, CJX)
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BRX = (FQJ, QMT)
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MQV = (NRJ, CKC)
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QBR = (QSV, MTB)
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CDL = (JHM, QXD)
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XTH = (VPR, TNF)
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BBJ = (FJT, KHV)
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CXS = (MGF, SCR)
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HBL = (XKB, XKJ)
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PHT = (BDS, KHF)
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RJR = (QLS, HCK)
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THQ = (GCS, GXV)
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QNB = (BBJ, LGR)
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XFC = (CFP, XDP)
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BMM = (DQF, TGS)
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NVR = (QNB, HVX)
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QHG = (XRB, DPB)
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HFS = (MKC, CDM)
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LCK = (HXR, QPF)
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GHF = (NQP, RBD)
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XPM = (RVC, QSX)
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CFP = (CPM, DPP)
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GJC = (PPN, FMR)
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QFM = (XCR, PPX)
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XCF = (QKV, CXV)
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TTX = (HTC, HTC)
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XLG = (DXT, VSG)
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QNH = (GPK, BCC)
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FHJ = (XKR, BGN)
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SPV = (RVF, DFR)
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FNN = (GCL, TCP)
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SXG = (QHK, KJM)
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TSD = (QBR, MLV)
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PFV = (KXK, NQX)
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LKS = (LKB, SPM)
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DQF = (XKV, QKR)
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HHT = (LHP, JSS)
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NSH = (MBK, PRM)
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SRF = (GDM, CPD)
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BDS = (GDN, RJB)
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KQX = (HVS, JGS)
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JHM = (XHV, PGF)
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KXF = (LNP, BKR)
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KRB = (MHM, NDN)
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FHR = (JRL, QPS)
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GJN = (GCS, GXV)
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QLT = (DFK, NGQ)
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GTP = (NSL, QQC)
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NCM = (PMJ, QTF)
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JVP = (NVX, KKM)
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JRK = (NNR, VBQ)
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CBR = (QGX, QDB)
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SJS = (PGG, PGG)
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DML = (NMJ, TKX)
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GPN = (JDL, DHV)
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HKL = (FHR, NGT)
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CVN = (FXX, QGP)
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TBH = (GJC, SGC)
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VTM = (LFR, NTZ)
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JFC = (VVD, LGD)
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BSB = (VLC, GML)
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MGV = (QQD, VGN)
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PGG = (TRJ, TRJ)
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LGD = (JVT, MTV)
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TKC = (BFB, QCD)
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CPX = (HXC, MBP)
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JGD = (LHP, JSS)
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CBS = (VVJ, FQR)
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KMB = (HCK, QLS)
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VBT = (CXJ, PHT)
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VPR = (JFC, JSG)
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TKR = (MVD, HFG)
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RXK = (SDR, TBL)
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DRK = (BNH, BSP)
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SCR = (PCR, SXP)
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DMN = (VDN, NGN)
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KTA = (FHR, NGT)
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PHP = (XCJ, QGG)
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KPF = (TPV, VBM)
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MGQ = (DCV, QND)
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LSN = (GVV, LPP)
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KPM = (BDK, GTC)
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QMM = (DJD, BFL)
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DXT = (PGR, BMQ)
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MKX = (PKQ, BCN)
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BFB = (QMM, TXJ)
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GFD = (LSD, MCX)
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PFK = (QCD, BFB)
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LTM = (DLV, DCC)
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SSK = (SRG, NSB)
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LHC = (TDJ, FPQ)
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LFG = (DFR, RVF)
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RBH = (VKM, GQP)
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GDN = (DMN, DGK)
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GTG = (DKM, KDJ)
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BVK = (KVJ, KGP)
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QMQ = (TRJ, HMF)
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NNQ = (GLC, SXG)
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XTJ = (MXN, MDT)
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MCP = (HFL, PSV)
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HTC = (LFR, LFR)
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DLV = (KRB, KBJ)
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RBG = (CTP, BQJ)
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CDD = (XKB, XKJ)
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RBF = (QDT, DCG)
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VJL = (MRR, KPH)
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HRH = (CQC, NSH)
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FNG = (XBD, RHV)
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QGM = (FKG, GQN)
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BDK = (KGJ, GTP)
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HDG = (DPD, GVF)
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GFP = (XKH, HTL)
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NDJ = (CPX, LCR)
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NGN = (CKT, VJL)
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QRQ = (TJG, GJB)
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VSS = (TLF, MKX)
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DHV = (BKV, GFP)
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QXS = (MBN, MKK)
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NBX = (HPS, CTB)
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LXB = (NCM, RRR)
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GQL = (GKC, GCC)
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JCB = (RSG, PDF)
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JRL = (QMN, NKD)
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PBL = (MRM, GRM)
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KHF = (GDN, RJB)
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MPG = (GFQ, MFC)
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VTN = (KLQ, CDL)
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CSN = (HQG, HQG)
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KSH = (RQF, RQF)
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BGQ = (CCG, NLH)
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GVV = (SRF, SMD)
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JJL = (QMS, NGX)
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HBT = (CGH, RQJ)
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RSX = (LLV, GRL)
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CTH = (RLX, MDH)
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CXH = (GRV, RLB)
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QKR = (HGC, HRB)
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TDR = (DHV, JDL)
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TBL = (DNF, SQN)
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BMQ = (SPV, LFG)
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MVX = (XQS, MKV)
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RNL = (DLV, DCC)
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CCG = (RBF, MKL)
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TRJ = (FLG, FLG)
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XFP = (NLL, BTD)
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CHT = (NCJ, BGQ)
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KMK = (CXV, QKV)
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MVS = (BMM, LTG)
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PNM = (HTC, VTM)
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BSX = (HJR, PXV)
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RSV = (BTD, NLL)
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QHK = (FGM, DML)
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QNG = (RQP, QHB)
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XRX = (KXF, HCV)
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DPD = (PCD, GHT)
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KXJ = (CGS, NGH)
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VTD = (GDB, VTQ)
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QND = (BVJ, HKD)
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VBQ = (PBH, SBT)
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SGC = (FMR, PPN)
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NTZ = (PCB, CHT)
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DQR = (NSH, CQC)
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KVJ = (SCC, JCN)
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SXP = (CVR, MSD)
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RQP = (NNF, DRD)
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CJX = (JVP, BBV)
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RQJ = (XCF, KMK)
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PGF = (SGX, DHC)
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JLM = (XQS, MKV)
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KBB = (BML, NSJ)
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PMD = (HCQ, RQS)
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VDN = (VJL, CKT)
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LCR = (HXC, MBP)
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GFV = (LRP, GFD)
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PLA = (GFS, XPP)
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FPQ = (JLD, CJJ)
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KBP = (FQJ, QMT)
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BBV = (NVX, KKM)
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DSC = (RTV, KMV)
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KKX = (VKF, XBF)
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MDT = (RQQ, RST)
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PJT = (QNH, BFN)
|
||||
MGX = (HXR, QPF)
|
||||
RHT = (XBF, VKF)
|
||||
DLZ = (NGT, FHR)
|
||||
RRJ = (JLM, MVX)
|
||||
SXV = (QRQ, MRJ)
|
||||
BJX = (FMC, LXB)
|
||||
CJJ = (GHF, GXQ)
|
||||
HQR = (TTX, TTX)
|
||||
QHB = (NNF, DRD)
|
||||
RGZ = (XPP, GFS)
|
||||
TCP = (CXS, RJD)
|
||||
KRJ = (MLV, QBR)
|
||||
HXC = (NLG, KBB)
|
||||
MGN = (GNB, FCS)
|
||||
GXQ = (RBD, NQP)
|
||||
GPK = (XGG, VRC)
|
||||
LQD = (CVN, PCH)
|
||||
MJV = (VLP, QMP)
|
||||
LNJ = (VTN, BFM)
|
||||
QSX = (FMQ, QNG)
|
||||
GRL = (KSH, TSN)
|
||||
VJB = (HHT, JGD)
|
||||
QGP = (FSN, FNJ)
|
||||
TXT = (PCH, CVN)
|
||||
CML = (TSV, GQL)
|
||||
FQJ = (LFB, BSX)
|
||||
PHR = (LVG, BNJ)
|
||||
PMX = (KXF, HCV)
|
||||
FRL = (QSX, RVC)
|
||||
HDP = (KMV, RTV)
|
||||
SBT = (NNB, GXD)
|
||||
QLS = (NRF, LBG)
|
||||
RDH = (DDS, VBX)
|
||||
TPV = (VHH, KJG)
|
||||
KBJ = (NDN, MHM)
|
||||
MCX = (LCK, MGX)
|
||||
PPT = (XBD, RHV)
|
||||
QMN = (XRX, PMX)
|
||||
DCC = (KBJ, KRB)
|
||||
KPC = (XDX, KNM)
|
||||
MFM = (VRL, MHV)
|
||||
CGD = (DPB, XRB)
|
||||
CGS = (KJF, KPM)
|
||||
XCJ = (QDQ, HVT)
|
||||
XGG = (MCP, JGV)
|
||||
QGX = (VTS, BJX)
|
||||
QSP = (JGS, HVS)
|
||||
RQS = (CPR, SCN)
|
||||
NSJ = (RBK, TPT)
|
||||
DGG = (MNK, PKD)
|
||||
MLG = (GCQ, XFC)
|
||||
BML = (TPT, RBK)
|
||||
KHV = (TSH, BKK)
|
||||
BQJ = (XVK, SXV)
|
||||
GCC = (KQX, QSP)
|
||||
VMK = (DLL, DTK)
|
||||
FMR = (NXV, PGP)
|
||||
GVF = (PCD, GHT)
|
||||
HLL = (JQL, VRK)
|
||||
PCB = (NCJ, BGQ)
|
||||
TSV = (GKC, GCC)
|
||||
GLP = (CCN, LMC)
|
||||
CDM = (NHJ, QGM)
|
||||
MDJ = (KGP, KVJ)
|
||||
LSD = (LCK, MGX)
|
||||
MXN = (RQQ, RST)
|
||||
DFK = (VMJ, KQT)
|
||||
BGN = (BVK, MDJ)
|
||||
LJR = (GFS, XPP)
|
||||
RHJ = (VSS, CSL)
|
||||
VRK = (FRN, LRR)
|
||||
CGF = (RBH, BMX)
|
||||
DLL = (CKP, KMN)
|
||||
LVC = (NGQ, DFK)
|
||||
MVD = (RJP, VXB)
|
||||
TTG = (NKR, VMK)
|
||||
RCV = (RQS, HCQ)
|
||||
NQP = (MGM, RBG)
|
||||
HNT = (FPL, RLJ)
|
||||
JCJ = (JPL, MPG)
|
||||
VHJ = (CDD, HBL)
|
||||
HFL = (QHL, MJV)
|
||||
XMK = (RRJ, FCD)
|
||||
NHJ = (FKG, GQN)
|
||||
VTS = (LXB, FMC)
|
||||
FGM = (NMJ, TKX)
|
||||
JLD = (GHF, GXQ)
|
||||
NSL = (LQD, TXT)
|
||||
HHL = (LKB, SPM)
|
||||
JPL = (GFQ, MFC)
|
||||
XRB = (HBT, KRM)
|
||||
MNM = (MHV, VRL)
|
||||
CCR = (DXB, SPC)
|
||||
CPQ = (RSX, XVC)
|
||||
QQM = (TFL, RJV)
|
||||
XXK = (SLK, JST)
|
||||
LBT = (CBF, CBF)
|
||||
XKR = (MDJ, BVK)
|
||||
QMV = (QTT, MQV)
|
||||
CTP = (SXV, XVK)
|
||||
NVX = (HQR, TNP)
|
||||
HQG = (SVN, SVN)
|
||||
XCR = (JXH, TKL)
|
||||
PJD = (GRV, RLB)
|
||||
CGH = (XCF, KMK)
|
||||
VRC = (MCP, JGV)
|
||||
GCQ = (XDP, CFP)
|
||||
DCV = (BVJ, HKD)
|
||||
SRG = (PSK, QLV)
|
||||
BGC = (KNP, TRM)
|
||||
TDJ = (JLD, CJJ)
|
||||
FBH = (NQX, KXK)
|
||||
TRK = (CCR, HNH)
|
||||
RRR = (PMJ, QTF)
|
||||
LJA = (QGX, QDB)
|
||||
KJF = (GTC, BDK)
|
||||
FFP = (JDS, FVK)
|
||||
GML = (TBH, BNQ)
|
||||
KGP = (JCN, SCC)
|
||||
JMR = (HFG, MVD)
|
||||
MBP = (KBB, NLG)
|
||||
CBF = (HKL, HKL)
|
||||
FDP = (CDK, JJR)
|
||||
SDR = (SQN, DNF)
|
||||
VXB = (LSN, NJS)
|
||||
JDL = (GFP, BKV)
|
||||
XHV = (DHC, SGX)
|
||||
LRR = (FCK, LGX)
|
||||
VVJ = (XTJ, KKJ)
|
||||
HXR = (BGT, LFH)
|
||||
HDT = (QNB, HVX)
|
||||
SMQ = (PHP, SNK)
|
||||
KDJ = (PKV, RXG)
|
||||
GFS = (NDJ, SCX)
|
||||
QQC = (TXT, LQD)
|
||||
QCD = (TXJ, QMM)
|
||||
NGQ = (KQT, VMJ)
|
||||
PRM = (KMQ, KHC)
|
||||
NCJ = (NLH, CCG)
|
||||
FJT = (BKK, TSH)
|
||||
LMB = (MBN, MKK)
|
||||
XQS = (SST, VBD)
|
||||
MGF = (PCR, SXP)
|
||||
TJG = (HDG, XTV)
|
||||
SGX = (GVG, RTQ)
|
||||
CKC = (CSN, JXD)
|
||||
JVT = (JCJ, BNV)
|
||||
QDQ = (PFV, FBH)
|
||||
FQR = (KKJ, XTJ)
|
||||
NXV = (DGP, KGT)
|
||||
BCN = (PBG, XSG)
|
||||
DRD = (LHC, TRB)
|
||||
JDS = (TDP, XMK)
|
||||
MKC = (QGM, NHJ)
|
||||
JST = (MLG, MGJ)
|
||||
TRG = (RRK, PJT)
|
||||
JCN = (PJD, CXH)
|
||||
PXV = (JMR, TKR)
|
||||
MCC = (LBT, NQS)
|
||||
RBK = (HFC, TLL)
|
||||
CKP = (BRH, CHH)
|
||||
BVJ = (XBB, GFV)
|
||||
HRB = (TRG, VGT)
|
||||
NNF = (TRB, LHC)
|
||||
DXB = (RNS, BSB)
|
||||
VBM = (KJG, VHH)
|
||||
PPV = (JGD, HHT)
|
||||
MHV = (TSD, KRJ)
|
||||
BNH = (GLP, RMB)
|
||||
NLG = (NSJ, BML)
|
||||
LBG = (SSK, NTV)
|
||||
NMJ = (SJD, FHJ)
|
||||
PSK = (XCD, SSF)
|
||||
CSL = (MKX, TLF)
|
||||
MKK = (LKS, HHL)
|
||||
VBD = (HVM, HCP)
|
||||
NNX = (RSG, PDF)
|
||||
HGT = (RCV, PMD)
|
||||
PLB = (RSV, XFP)
|
||||
KXK = (VKV, MGQ)
|
||||
MHM = (KFR, CNM)
|
||||
AAA = (DCX, FDP)
|
||||
RMB = (CCN, LMC)
|
||||
BGT = (BBF, TFF)
|
||||
DNT = (RNT, XXK)
|
||||
GVG = (HDP, DSC)
|
||||
MKV = (VBD, SST)
|
||||
HFC = (MMJ, HFB)
|
||||
NDN = (KFR, CNM)
|
||||
RVC = (FMQ, QNG)
|
||||
JNV = (BNJ, LVG)
|
||||
TRB = (FPQ, TDJ)
|
||||
XDX = (LSP, CGF)
|
||||
RJB = (DMN, DGK)
|
||||
CPD = (DQR, HRH)
|
||||
NRJ = (CSN, JXD)
|
||||
XXS = (TSV, GQL)
|
||||
FCD = (JLM, MVX)
|
||||
BNQ = (GJC, SGC)
|
||||
TNP = (TTX, PNM)
|
||||
NSB = (QLV, PSK)
|
||||
HVX = (BBJ, LGR)
|
||||
JQL = (LRR, FRN)
|
||||
GXV = (LMB, QXS)
|
||||
HBZ = (PPT, FNG)
|
||||
NNR = (PBH, SBT)
|
||||
CTB = (RJR, KMB)
|
||||
HTL = (KPC, NLM)
|
||||
RLX = (VKC, CMN)
|
||||
NGH = (KPM, KJF)
|
||||
SMD = (CPD, GDM)
|
||||
LKV = (QMS, NGX)
|
||||
DCX = (JJR, CDK)
|
||||
TNF = (JFC, JSG)
|
||||
XTV = (GVF, DPD)
|
||||
LVG = (DLN, HNT)
|
||||
CVR = (DNM, MCC)
|
||||
JXA = (CHT, PCB)
|
||||
DPB = (HBT, KRM)
|
||||
LFH = (BBF, TFF)
|
||||
VHH = (RNL, LTM)
|
||||
DNM = (LBT, LBT)
|
||||
JXD = (HQG, BBP)
|
||||
RNS = (GML, VLC)
|
||||
KKJ = (MDT, MXN)
|
||||
NFA = (FNG, PPT)
|
||||
XBB = (GFD, LRP)
|
||||
HMF = (FLG, HBZ)
|
||||
LTG = (TGS, DQF)
|
||||
HHP = (NSC, FLV)
|
||||
GFQ = (HHP, DFM)
|
||||
XCD = (TKC, PFK)
|
||||
FXL = (SLD, DRK)
|
||||
LMC = (BGG, MVK)
|
||||
XXL = (PHT, CXJ)
|
||||
FPL = (NKB, QQM)
|
||||
LFB = (PXV, HJR)
|
||||
MBN = (LKS, HHL)
|
||||
QKB = (HBL, CDD)
|
||||
RJV = (VHJ, QKB)
|
||||
KMV = (DSV, TTG)
|
||||
QPF = (BGT, LFH)
|
||||
TFL = (VHJ, QKB)
|
||||
SCX = (CPX, LCR)
|
||||
BRH = (KKX, RHT)
|
||||
XKH = (KPC, NLM)
|
||||
FCS = (CPN, FSK)
|
||||
FMQ = (QHB, RQP)
|
||||
GRV = (MFM, MNM)
|
||||
QPS = (NKD, QMN)
|
||||
NTV = (NSB, SRG)
|
||||
NLL = (XTH, HHQ)
|
||||
QDT = (LCN, MGN)
|
||||
RTV = (DSV, TTG)
|
||||
RLB = (MNM, MFM)
|
||||
QKS = (VBM, TPV)
|
||||
QCT = (XCR, PPX)
|
||||
KMN = (BRH, CHH)
|
||||
TLF = (BCN, PKQ)
|
||||
JKS = (JNV, PHR)
|
||||
PBG = (VBT, XXL)
|
||||
NQX = (VKV, MGQ)
|
||||
FLG = (FNG, PPT)
|
||||
RNT = (SLK, JST)
|
||||
BNJ = (DLN, HNT)
|
||||
QLV = (SSF, XCD)
|
||||
FMC = (RRR, NCM)
|
||||
BRN = (PGG, QMQ)
|
||||
MBK = (KMQ, KHC)
|
||||
TXJ = (DJD, BFL)
|
||||
LCN = (FCS, GNB)
|
||||
TLL = (MMJ, HFB)
|
||||
GDB = (QHG, CGD)
|
||||
XSD = (JDS, FVK)
|
||||
BBF = (RPF, MSH)
|
||||
NSC = (QNL, QMV)
|
||||
GQP = (FLM, SNG)
|
||||
LSP = (BMX, RBH)
|
||||
KPH = (PCG, GTG)
|
||||
XPP = (SCX, NDJ)
|
||||
QNL = (MQV, QTT)
|
||||
TSH = (FNN, CNH)
|
||||
MMQ = (RSV, XFP)
|
||||
XSG = (XXL, VBT)
|
||||
GCL = (RJD, CXS)
|
||||
XHD = (RCV, PMD)
|
||||
TXS = (HCX, PBL)
|
||||
RSG = (CPQ, MJB)
|
||||
CXJ = (KHF, BDS)
|
||||
BGZ = (QDB, QGX)
|
||||
MTB = (VJB, PPV)
|
||||
MLV = (QSV, MTB)
|
||||
NKB = (RJV, TFL)
|
||||
QDB = (VTS, BJX)
|
||||
KLQ = (QXD, JHM)
|
||||
HPS = (RJR, KMB)
|
||||
TQN = (JRK, QDR)
|
||||
VHP = (FQR, VVJ)
|
||||
VRL = (TSD, KRJ)
|
||||
RDQ = (QCT, QFM)
|
||||
BVV = (HML, CTH)
|
||||
QTF = (VHS, SMQ)
|
||||
CMN = (TGM, DNT)
|
||||
TGM = (XXK, RNT)
|
||||
HVS = (FRL, XPM)
|
||||
NKD = (XRX, PMX)
|
||||
VLP = (NTN, NTN)
|
||||
CNM = (HGT, XHD)
|
||||
PSV = (QHL, MJV)
|
||||
RQF = (HXH, HXH)
|
||||
HVT = (FBH, PFV)
|
||||
RVF = (GDK, RXK)
|
||||
PCD = (HSD, XSQ)
|
||||
ZZZ = (FDP, DCX)
|
||||
KKM = (HQR, TNP)
|
||||
KRM = (CGH, RQJ)
|
||||
VSG = (PGR, BMQ)
|
||||
KFR = (HGT, XHD)
|
||||
RQQ = (SJS, BRN)
|
||||
NNC = (QKS, KPF)
|
||||
CQC = (MBK, PRM)
|
||||
XKB = (RDH, XQK)
|
||||
TGS = (XKV, QKR)
|
||||
DTK = (CKP, KMN)
|
||||
@ -0,0 +1,91 @@
|
||||
const std = @import("std");
|
||||
|
||||
pub fn main() !void {
|
||||
const content = @embedFile("data.txt");
|
||||
var lines = std.mem.split(u8, content, "\n");
|
||||
|
||||
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
|
||||
const allocator = gpa.allocator();
|
||||
|
||||
const instructions = lines.next().?;
|
||||
_ = lines.next();
|
||||
|
||||
var map = std.StringArrayHashMap([]const u8).init(allocator);
|
||||
defer map.deinit();
|
||||
|
||||
while (lines.next()) |line| {
|
||||
if (line.len == 0) {
|
||||
break;
|
||||
}
|
||||
|
||||
try map.put(line[0..3], line[7..15]);
|
||||
}
|
||||
|
||||
var i: u16 = 0;
|
||||
var cur = try allocator.dupe(u8, "AAA");
|
||||
while (true) : (i += 1) {
|
||||
if (std.mem.eql(u8, cur, "ZZZ")) {
|
||||
break;
|
||||
}
|
||||
const ins = instructions[i % instructions.len];
|
||||
const nodes = map.get(cur).?;
|
||||
if (ins == 'L') {
|
||||
std.mem.copy(u8, cur, nodes[0..3]);
|
||||
} else {
|
||||
std.mem.copy(u8, cur, nodes[5..8]);
|
||||
}
|
||||
}
|
||||
|
||||
std.debug.print("Part 1: {d}\n", .{i});
|
||||
|
||||
// Part 2
|
||||
var nodes = std.ArrayList([]const u8).init(allocator);
|
||||
defer nodes.deinit();
|
||||
|
||||
var steps = std.ArrayList(u32).init(allocator);
|
||||
defer steps.deinit();
|
||||
|
||||
// Find starting nodes
|
||||
for (map.keys()) |k| {
|
||||
if (k[2] == 'A') {
|
||||
try nodes.append(k);
|
||||
}
|
||||
}
|
||||
|
||||
// for each starting node, how long until we get to a Z-ending node
|
||||
for (nodes.items) |node| {
|
||||
var j: u32 = 0;
|
||||
cur = try allocator.dupe(u8, node);
|
||||
while (true) : (j += 1) {
|
||||
// std.debug.print("checking node: {s}\n", .{cur});
|
||||
if (cur[2] == 'Z') {
|
||||
break;
|
||||
}
|
||||
const ins = instructions[j % instructions.len];
|
||||
|
||||
const next = map.get(cur).?;
|
||||
if (ins == 'L') {
|
||||
std.mem.copy(u8, cur, next[0..3]);
|
||||
} else {
|
||||
std.mem.copy(u8, cur, next[5..8]);
|
||||
}
|
||||
}
|
||||
try steps.append(j);
|
||||
}
|
||||
|
||||
var lowest: u64 = steps.items[0];
|
||||
for (0..steps.items.len - 1) |j| {
|
||||
lowest = lcm(lowest, steps.items[j + 1]).?;
|
||||
}
|
||||
std.debug.print("Part 2: {d}\n", .{lowest});
|
||||
}
|
||||
|
||||
fn lcm(left: u64, right: u64) ?u64 {
|
||||
var i: u64 = @max(left, right);
|
||||
while (true) : (i += @max(left, right)) {
|
||||
if (i % left == 0 and i % right == 0) {
|
||||
return @as(u64, @intCast(i));
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
@ -0,0 +1,9 @@
|
||||
RL
|
||||
|
||||
AAA = (BBB, CCC)
|
||||
BBB = (DDD, EEE)
|
||||
CCC = (ZZZ, GGG)
|
||||
DDD = (DDD, DDD)
|
||||
EEE = (EEE, EEE)
|
||||
GGG = (GGG, GGG)
|
||||
ZZZ = (ZZZ, ZZZ)
|
||||
@ -0,0 +1,5 @@
|
||||
LLR
|
||||
|
||||
AAA = (BBB, BBB)
|
||||
BBB = (AAA, ZZZ)
|
||||
ZZZ = (ZZZ, ZZZ)
|
||||
@ -0,0 +1,10 @@
|
||||
LR
|
||||
|
||||
11A = (11B, XXX)
|
||||
11B = (XXX, 11Z)
|
||||
11Z = (11B, XXX)
|
||||
22A = (22B, XXX)
|
||||
22B = (22C, 22C)
|
||||
22C = (22Z, 22Z)
|
||||
22Z = (22B, 22B)
|
||||
XXX = (XXX, XXX)
|
||||
Loading…
Reference in New Issue