-ic c-- ccc cci ccm ccs cct ci- cic cii cim cis cit cmc cmi cmm cms cmt cmy csc csi csm css cst csy ctc cti ctm cts ctt cty cyc cym cys cyt icc ici icm ics ict icy iic iii iim iis iit im- imc imi imm ims imt imy is- isc isi ism iss ist isy itc iti itm its itt ity iyc iym iys iyt iyy mc- mcc mci mcm mcs mct mi- mic mii mim mis mit miy mmc mmi mmm mms mmt msc msi msm mss mst msy mtc mti mtm mts mtt my- myc mym mys myt scc sci scm scs sct sic sii sim sis sit smc smi smm sms smt smy ss- ssc ssi ssm sss sst stc sti stm sts stt sty sy- syc syi sym sys syt tcc tci tcm tcs tct tic tii tim tis tit tiy tmc tmi tmm tms tmt tmy tsc tsi tsm tss tst tsy ttc tti ttm tts ttt tty tyc tym tys tyt ycc yci ycs ycy yii yim yis yit ymc ymi ymm yms ymt ysc ysi ysm yss yst ysy ytc ytm yts ytt yyc yys yyt yyy