-ic -th bbb bbc bbh bbi bbo bbt bcb bcc bch bci bco bct bhb bhc bhh bhi bho bht bi- bib bic bih bii bio bit bob boc boh boi boo bot btb btc bth bti bto btt c-- cbb cbc cbh cbi cbo cbt ccb ccc cch cci cco cct ch- chb chc chh chi cho cht ci- cib cic cih cii cio cit co- cob coc coh coi coo cot ctb ctc cth cti cto ctt h-i hbb hbc hbh hbi hbo hbt hcb hcc hch hci hco hct hhb hhc hhh hhi hho hht hib hic hih hii hio hit hob hoc hoh hoi hoo hot htb htc hth hti hto htt ibb ibc ibh ibi ibo ibt icb icc ich ici ico ict ihb ihc ihh ihi iho iht iib iic iih iii iio iit io- iob ioc ioh ioi ioo iot itb itc ith iti ito itt o-i ob- obb obc obh obi obo obt 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 tbb tbc tbh tbi tbo tbt tcb tcc tch tci tco tct th- thb thc thh thi tho tht tib tic tih tii tio tit to- tob toc toh toi too tot ttb ttc tth tti tto ttt