c-- ccc ccf cco cct cfc cff cfo cft co- coc cof coo cot ctc ctf cto ctt fcc fcf fco fct ffc fff ffo fft foc fof foo fot ftc ftf fto ftt oc- occ ocf oco oct of- ofc off ofo oft oo- ooc oof ooo oot ot- otc otf oto ott tcc tcf tco tct tfc tff tfo tft to- toc tof too tot ttc ttf tto ttt

cccc cccf ccfc ccff ccoc cctc cctt cfcf cfco cftc coco coct cofc coff coft coof coot cotc coto cott ctcf ctfc ctfo ctot fccf fcot fcto ffcc ffff fftf foco fofo foof foot foto fott ft-c ftfc occc occt oct- octo off- offc offo ooff oooo otfc oto- otof otoo otto tccc tcfc tctc tfot tftc toco toff tofo toft toof toot totc toto tott ttfc ttff tttt

ccccc co-co cocc- cocco cocto cott- cotto ocftc octo- offof offto ofoto ooooo ototo tocco toco- toffo toto- totoo ttttt

cocco- cococo cocto- coocoo foofoo oooooo tootoo

foo-foo off-off too-too tototoo

toottoot

ccccccccccccccc