-ic c-- ccc cci ccr cct ci- cic cii cir cit crc cri crr crt cry ctc cti ctr ctt cty cyc cyr cyt icc ici icr ict icy iic iii iir iit ir- irc iri irr irt iry itc iti itt ity iyc iyr iyt iyy rcc rci rcr rct ric rii rir rit riy rrc rri rrr rrt rtc rti rtr rtt rty ry- ryc ryr ryy tcc tci tcr tct tic tii tir tit tiy trc tri trr trt try ttc tti ttr ttt tty tyc tyr tyt ycc yci ycy yii yir yit yrc yrt ytc ytr ytt yyc yyt yyy