-ic -th bbb bbc bbh bbi bbr bbt bby bcb bcc bch bci bcr bct bcy bhb bhc bhh bhi bhr bht bi- bib bic bih bii bir bit biy brb brh bri brr brt bry btb btc bth bti btr btt bty by- byc byh byi byr byt c-- cbb cbc cbh cbi cbr cbt cby ccb ccc cch cci ccr cct ch- chb chc chh chi chr cht chy ci- cib cic cih cii cir cit crb crc crh cri crr crt cry ctb ctc cth cti ctr ctt cty cyb cyc cyr cyt h-i hbb hbc hbh hbi hbr hbt hby hcb hcc hch hci hcr hct hcy hhb hhc hhh hhi hhr hht hhy hib hic hih hii hir hit hr- hrb hrc hrh hri hrr hrt htb htc hth hti htr htt hty hy- hyb hyc hyh hyi hyr hyt hyy ibb ibc ibh ibi ibr ibt iby icb icc ich ici icr ict icy ihb ihc ihh ihi ihr iht ihy iib iic iih iii iir iit ir- irb irc iri irr irt iry itb itc ith iti itt ity iyc iyr iyt iyy rbb rbc rbh rbi rbr rbt rcb rcc rch rci rcr rct rh- rhb rhc rhh rhi rhr rht rib ric rih rii rir rit riy rrb rrc rrh rri rrr rrt rtb rtc rti rtr rtt rty ry- ryc ryr ryy tbb tbc tbh tbi tbr tbt tcb tcc tch tci tcr tct th- thb thc thh thi thr tht thy tib tic tih tii tir tit tiy trb trc trh tri trr trt try ttb ttc tth tti ttr ttt tty tyc tyr tyt ybc ybi ybr yby ycc ych yci ycy yhc yhi yht yih yii yir yit yrc yrt ytc yth ytr ytt yyb yyc yyt yyy