-ic -th bbb bbc bbh bbi bbo bbt bby bcb bcc bch bci bco bct bcy bhb bhc bhh bhi bho bht bi- bib bic bih bii bio bit biy bob boc boh boi boo bot boy btb btc bth bti bto btt bty by- byc byh byi byo byt c-- cbb cbc cbh cbi cbo cbt cby ccb ccc cch cci cco cct ch- chb chc chh chi cho cht chy ci- cib cic cih cii cio cit co- cob coc coh coi coo cot coy ctb ctc cth cti cto ctt cty cyb cyc cyo cyt h-i hbb hbc hbh hbi hbo hbt hby hcb hcc hch hci hco hct hcy hhb hhc hhh hhi hho hht hhy hib hic hih hii hio hit hob hoc hoh hoi hoo hot hoy htb htc hth hti hto htt hty hy- hyb hyc hyh hyi hyo hyt hyy ibb ibc ibh ibi ibo ibt iby icb icc ich ici ico ict icy ihb ihc ihh ihi iho iht ihy iib iic iih iii iio iit io- iob ioc ioh ioi ioo iot itb itc ith iti ito itt ity iyc iyo iyt iyy o-i ob- obb obc obh obi obo obt oby oc- ocb occ och oci oco oct ohc ohh ohi oho oht oib oic oii oio oit oo- oob ooc ooh ooi ooo oot ot- otb otc oth oti oto ott oyi oyo tbb tbc tbh tbi tbo tbt tcb tcc tch tci tco tct th- thb thc thh thi tho tht thy tib tic tih tii tio tit tiy to- tob toc toh toi too tot toy ttb ttc tth tti tto ttt tty tyc tyo tyt ybc ybi yby ycc ych yci yco ycy yhc yhi yht yih yii yio yit yob yoc yoi yoo yot yoy ytc yth yto ytt yyb yyc yyt yyy