20 469
BAFHGHC
BDEEHHABHHC
HBGGGAEGE
DGDEEADB
HEAGBGAB
HCDDDHFEF
GAAAGFBEHDG
GFHABEGBDFB
FDFEAAHEE
FDCGDGDAABD
BDFGBDGDEE
BBDGFEGHEFE
HGEEGDBAHCB
FEHBCAECCGC
CAFDFCBG
GBGABEBB
DCCDHDG
BEBBEDD
HBDHEGCBB
ACBADCABHE
HEAGBGABE
ABCHAGHEDC
ECADCDFEBEE
HAFCDCCDC
DHFEFEHB
GEAEEED
EBEDGCF
FFFGHBEB
CGHCAFD
HDACCAFGCCB
DCEDGEAEE
ABCCAGCFB
HGFFDHGEEG
CHDHCHFA
HCCAGAF
DHDADHBAH
CBDFGBDGDE
ABEDGHAAE
HFBAFHGHCDF
BDEEHHAB
ECDBHDDBFDF
CDECCDDH
HEFAECDHBF
DGFEGHEFEG
AGAFFCB
DDHDADHB
CABHEDBFHEC
EFDCDGG
BFEEGBC
BFFCECFHHEE
DEBDCED
HEFEGGD
DAFAGHGD
GDAFFGF
DBFDFEA
FBABFCHE
EEFDFEGEF
EHGBDGEBFDE
DEEHHABHH
EBDCEDGEAE
GHCAFDF
EEEFHECDB
BBDGFEGHE
CAGCFBG
CCGCEHCDD
GFEGHEFEGGD
HFABFBCC
CDCEFDCD
GFBEHDGBAB
FGBFFCEC
DFGBDGDEEAD
DHEGCBBAD
GECHDGA
DCBGEBEG
DDAHHDBE
HAGHEDC
DBACAABG
HCGHCAFDF
EEFDFEGEF
HFHGGFBGGD
CCFBABFCHEC
GEAEEGDAF
HCEFBCCH
GACHFHE
BBDGFEGHEFE
GBDGDEEA
AEGEAHCA
HDHDACC
BBADEDDAC
EDDACGFBF
GEAHCAF
CEBGBGCFAB
FBFCFBHHFG
BDDEFAH
BHEDBFHECCF
FDCGDGDAA
GFEGHEFEG
GFEGHEF
EEGBCGDFGEA
AAGACEEABC
CBGDAHG
EEGDAFAGH
BGHEDGBHD
EDACBADCA
HABEGBDFB
ACCAFGCCBAA
DAAHFHGGF
HHABHHC
GABEBBEDDA
DGBABADCC
ECDHBFEDAC
GDDDCCAD
AHDBHGG
HCAFGBDDC
CHHFGDDC
DBHDDBF
GBBGDCAAH
ECCGCEHCDD
GAAGACEEABC
CGAAAGFB
BEDGHAAE
BHDCDACDDBA
GDGFHAB
BEEHGBDGEB
DDACGFBFH
GAAGACEEAB
BABADCCCCG
HEHEABF
AAAGFBEH
CDCFECA
GCEHCDDDHF
ABDBDBBFF
FECEDAGEC
DBGGBHBDDEF
BHBDDEF
AAGFBEHDGBA
CHFBAFH
HEDCFHGDAF
BGGDGGBHB
FECAABFGAB
CHDGABD
EAEEGDAF
HFAFBDG
FCBBFDCGD
HHFGDDCCDH
DCFHGDAFFGF
GABEBBEDD
GCCBAAC
DAFFGFHABCH
HFAFBDGD
HGDAFFGFHA
DGBABADC
BFGABGHA
CDFEBEE
AFGBDDCAHBG
GBGABEB
EEEFHECDBHD
AAAGFBEHD
GAAAGFBEHDG
GABFBBBECH
GGHCEFBC
BCAECCG
CFBGDGG
CDBHDDB
EFDFEGE
EGGDBDBDD
CDBHDDBF
FABFBCCG
BFBBBECHHFG
FHEHEABF
FBCCGGHC
GFBEHDGBAB
DGDBGGBHB
DCFHGDAFFGF
EGGDBDB
FGEAEEED
DACGFBFHBDH
HBFEDACBAD
EGBCGDF
HFEGFCB
BFEEGBCGDF
CEBFEGD
AGHGDEBDC
FBGDGGAAGA
CEDGEAEEG
GGBFEEG
CDBHDDBF
HFEFEHBCA
FDFEAAHEEEF
EHCDDDHFE
GAAAGFBEHDG
ABFGABGHAFC
AGHGDEBDC
AFHGHCDFG
GECHDGABD
BCAECCGCEH
HCHCCAGAFFC
AAAGFBE
CCDHDGABFB
FGDBGEHEFHB
EEDGGGBFEE
ACEHAGHDHD
HEFHBDDECEA
DHDACCAFG
CHECABHEDB
BDFBFCF
DHFABFBCC
GGECFDC
GHDHDAC
BFDECAD
BCHAGHED
DCFHGDAFF
GBDGDEEADB
GCEHCDDDHF
DDBFDFEAA
AHHDBECCGBA
DBDDEBB
FGDGFHABEGB
DCGDGDAABD
BFGDHEA
BHDDBFDFEAA
GAFFCBDEEH
HGFCDHH
DFGCECFD
ABADCCCCGAA
DCAAHBAEC
DBACAAB
ECFDGGCHFBA
HGGDDAHHDB
FDCGDGDAAB
EHEABFC
ECDHBFEDAC
GBGABEBBED
GDAAHFHG
DFGEAEEEDGG
EFHECDBH
HEFEGGDBD
EEABCCAG
AEEEDGGGBFE
AAHEEEFH
FHGDAFF
BDFGBDGD
FEHBCAEC
EDACBAD
CCADCDC
CDHHCGH
DFBFCFBH
FFCBDEEHH
CEDAGECHD
EGGDBDB
DHFABFBC
FBECEBGBGC
DEEADBCDH
ABGHAFCDC
BGEBEGFD
BHFEGFCBBF
CFDCBGEB
EBBDGFEGHE
GHCEFBCCHCD
FCBBFDCGD
HFGDDCCD
EBEEHGBDGE
HFABFBCC
GDHGBBG
EAHCAFGBDD
FHHEEDBAA
FEGGDBD
HEFAECDHBF
ECCFBABFCHE
HAAEFBECE
DAFFGFHA
DHGBBGDCAA
GFBEHDGB
FAGHGDEB
DHFDHCB
DGGBHBHG
BFEDACB
EDCFAGECEEE
FAFBDGDB
AGACEEAB
FABEDGHAAEF
FFGHBEBGC
HDADHBAH
DBAHCBFDG
DDCAHBGG
ECEDAGECHD
HABEGBDF
HCDHFAB
FEDACBADC
ADEDDACG
FBGDGGAAG
DCABHEF
ECDBHDDB
EHDGBABA
EGEFGEDCFA
HBDDECEA
DDCAHBGGGAE
DCBGEBEGFD
DCGDGDAABDB
DDECEADD
GHEFEGGD
EEEDGGGBFE
BFEGDHG
FEFEHBC
GECEEEEFDF
FHEHEAB
FGCCBAAC
DHDACCAFGC
GDAHGFCDHH
GDBGEHEFHB
EEADBCD
BGCHDGE
AHEEEFHECDB
BDDEBBDGFEG
BDEEHHABH
AABDBHFE
EEEFHECDBHD
GCHDGEBED
BFCHDHCHFAG
HCDFGCE
BGGDGGBHB
DHEAGBGABEB
GFCDECC
GDEBDCEDGE
HDADHBAHA
EFDFEGEFGE
BGGDGGBH
HEFEGGDBDBD
CCCCGAAA
FGEDCFAGE
EBEDGCF
CDHDGAB
DAGECHDGAB
EGDAFAGH
HHDBECCGBA
FGBDGDEEAD
BHDDBFD
AFGCCBA
AAGFBEHDG
BBFFECEDAGE
HDGDDDC
GFBGGDGG
GABEBBED
CDFGCECFD
GEBEGFDCEE
BCCGGHCEFBC
FGBDDCAHBG
AGBGABEBB
EFEGGDBDBDD
BFEDACB
HFBAFHGHCD
EFHGGEC
DDDFGDBGE
EGHEFEGG
DCDFEBEEHG
BDFGBDGDEE
GHCDFGCEC
ACAABGHEDG
CADCDFE
EEGDBAHCBF
ABDBDBBF
DCCDCFECAA
GDDCCDH
EGFDCEEFHG
EBBEDDAABFG
GHCEFBC
FGDHEAGBGA
AGGDFGBFFCE
CGAAAGFB
DDFGDBGEH
HCBFDGEHGF
FDCEEFH
EFAECDHBFED
FFFGHBEBG
GDDCCDH
GHGDEBDCED
FBBBECHHFG
DGFHABE
ECFDCBGEBEG
CEEABCCAGCF
AGHGDEBDC
EDGGGBF
CFFFFGHBEB
GBCGDFGE
FDGEHGFFDHG
DCBGEBEGFD
HEDGBHDCD
FGEDCFAG
BACAABGHED
BCCAGCFB
GCECFDGGCHF
DHHCGHCAF
DCABHEFAECD
DFEBEEH
CHDGEBE
ECEEEEF
EDCFHGDAFF
AECCGCEHCDD
DAHGFCDHHC
ABCHAGHED
GDGFHABEG
GDAAHFHGGFB
GGBHBHGDA
FGCECFDGGC
AAHFHGGFB
ECEBFEGD
CGFBFHB
FFCBDEE
ECEEEEFDF
GHEFEGGD
HGHCDFGCEC
FDCGDGDAA
BFBBBECHHFG
AAEFBECEB
GECHDGABDBD
GEFGEDCFA
CEEABCCAGCF
DBAHCBFDGE
ABCCAGCFBG
DDDCCAD
FEFEHBCA
BDGEBFDECAD
ABGHAFCDC
GGDDAHHDB
HCDFGCECFD
GDHGBBGDCA
DEBDCED
EFHGGECFDCB
FFFFGHBEBGC
DGDAABD
CABHEDBFHE
FGHBEBGCHD
EDGBHDCDACD
CHDHCHFAG
DFEBEEH
EFBECEBGBG
CFECAABF
BAFHGHCDFG
DHDGABFBBB
DCCADCDC
BFHBDHE
FEGHEFEG
BABFCHECA
EFEGGDBD
HEDCFHGDAFF
DBFHECCFB
GDFGBFFCEC
DHDACCAFGCC
AHFHGGFBG
CAAHBAE
DGBABADCC
BHFEGFCB
HCBFDGEHG
GCHFBAFH
EGGDBDBDDE
FBDGDBGGBHB
FCDCCDC
GGBHBDDEFAH
BDBDDEBB
GCFABEDGH
AFFCBDE
CGHCAFDFC
HDBECCGB
BGHAFCD
BFBBBECHHF
HCAFGBDDC
DACDDBA
CDFEBEEHGB
FEDACBADCAB