bbb bbc bbo bbt bcb bcc bco bct bob boc boo bot btb btc bto btt c-- cbb cbc cbo cbt ccb ccc cco cct co- cob coc coo cot ctb ctc cto ctt ob- obb obc obo obt oc- ocb occ oco oct oo- oob ooc ooo oot ot- otb otc oto ott tbb tbc tbo tbt tcb tcc tco tct to- tob toc too tot ttb ttc tto ttt

bbbb bcbc bccc bctc bobb bobo boco boob booc boot botb boto bott btcc btob bttb c-bo cbbc cbcc cbct cbtc ccbc cccb cccc ccob ccoc cctb cctc cctt cobb cobo coco coct coob coot cotb cotc coto cott ctot obbo obot ocbc occc occt oct- octo oooo ootb oto- otoo otto tbcb tbcc tccc tctc tobo tobt toco toot totc toto tott ttbb tttt

bo-bo boboc booco ccccc co-bo co-co cobot cocc- cocco cocto cott- cotto octo- ooooo otcbb ototo tbtbt tcobb tobot tocco toco- toto- totoo ttttt

bbbbbb boccob booboo cobbob cocco- cococo cocto- coocoo oooooo toboot tootoo

bbbbbbb boo-boo too-too tototoo

bbbbbbbb bo-bo-bo toottoot

bbbbbbbbbbbbbbb ccccccccccccccc