-ic c-- ccc cci ccm cco cct ci- cic cii cim cio cit cmc cmi cmm cmo cmt co- coc coi com coo cot ctc cti ctm cto ctt icc ici icm ico ict iic iii iim iio iit im- imc imi imm imo imt io- ioc ioi iom ioo iot itc iti itm ito itt m-o mc- mcc mci mcm mco mct mi- mic mii mim mio mit mmc mmi mmm mmo mmt moc moi mom moo mot mtc mti mtm mto mtt o-i oc- occ oci ocm oco oct oic oii oim oio oit om- omc omi omm omo omt oo- ooc ooi oom ooo oot ot- otc oti otm oto ott tcc tci tcm tco tct tic tii tim tio tit tmc tmi tmm tmo tmt to- toc toi tom too tot ttc tti ttm tto ttt