-ic -th bbb bbc bbh bbi bbk bbo bbt bcb bcc bch bci bck bco bct bhb bhc bhh bhi bhk bho bht bi- bib bic bih bii bik bio bit bkb bkc bkk bko bkt bob boc boh boi bok boo bot btb btc bth bti btk bto btt c-- cbb cbc cbh cbi cbk cbo cbt ccb ccc cch cci cck cco cct ch- chb chc chh chi chk cho cht ci- cib cic cih cii cik cio cit ckb ckc ckh cki cko ckt co- cob coc coh coi cok coo cot ctb ctc cth cti ctk cto ctt h-i hbb hbc hbh hbi hbk hbo hbt hcb hcc hch hci hck hco hct hhb hhc hhh hhi hhk hho hht hib hic hih hii hik hio hit hkb hkh hki hkk hko hkt hob hoc hoh hoi hok hoo hot htb htc hth hti htk hto htt ibb ibc ibh ibi ibk ibo ibt icb icc ich ici ick ico ict ihb ihc ihh ihi ihk iho iht iib iic iih iii iio iit ikb ikc iki ikk iko ikt io- iob ioc ioh ioi ioo iot itb itc ith iti itk ito itt k-t kbb kbc kbh kbi kbk kbo kcb kcc kch kci kck kct khh khi khk kho kib kic kih kii kik kio kit kkb kkc kkh kki kkk kkt kob koc koh koi kok koo kot ktb ktc kth ktk kto ktt o-i ob- obb obc obh obi obk obo obt oc- ocb occ och oci ock oco oct ohc ohh ohi oho oht oib oic oii oik oio oit okb okc oki okk oko oo- oob ooc ooh ooi ook ooo oot ot- otb otc oth oti otk oto ott tbb tbc tbh tbi tbk tbo tbt tcb tcc tch tci tck tco tct th- thb thc thh thi thk tho tht tib tic tih tii tik tio tit tkb tkc tkk tko tkt to- tob toc toh toi tok too tot ttb ttc tth tti ttk tto ttt