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octagon
GGGAGSBAGABGABGGAGBGGBGGDGDG
GFBAASCCZBCBBGCGQRRRRRGMKNGB
GSBSSSGABAGGABGRRGGGBRGIQJBD
GSBSESGCGABGCGCRGBARRRGRRRDB
GSSSGSBAGCGABABRGBARBGGRBRBD
BAGGGRRRRRRRQRRRGBARRRRRGRFB
GRRRRRAGAABSDDDDSGBGGCGGCGBG
BRBGDGBBBRSSDDEDDSGGSSSSSSGD
GRRRGSSQSSDDDBBBDDSBSDCGCGDG
GB[RDSWDDDDDBBBBBDDSSGRRRRRG
GRRRGSSSSSDEBB_BBEDSBCRCGGRG
DFDGGDGGDSDDBBBBBDGSADR^FCRD
GDGFCFGDGSSDDBBBDASSBCRRRGRG
DGFFFFFFDGWD\DEDGBDGRDGCGCRD
FGWCCCBFGRRRRRRRRRGDGRRRRRRG
FFFFFCFFDGAGGGBCRRRRDDDBDDDD
CCECCCFBGMKNGGGGCGBRAMKNDMKN
BCCFBCFFFILJGMKKNGERAILJDILJ
ABABAACBFCGCGIHHJGRRRDBDDBDD
BGBGBFFFFGCGGIHHJDYBRDDMKNDA
CFCFCFAGYGFCGIHHJGRRRDBILJDB
BACABFBBABFGCIHHJCRBDDADDDDB
CABBCFFFFFFGDILLJGRDMKNDMKND
CBCCBCCCCCWCDDDCDGRBILJEILJB
