-ic -th bbb bbc bbe bbh bbi bbk bbo bbt bcb bcc bce bch bci bck bco bct be- beb bec bee beh bei bek beo bet bhb bhc bhe bhh bhi bhk bho bht bi- bib bic bie bih bii bik bio bit bkb bkc bke bkk bko bkt bob boc boe boh boi bok boo bot btb btc bte bth bti btk bto btt c-- cbb cbc cbe cbh cbi cbk cbo cbt ccb ccc cce cch cci cck cco cct ce- ceb cec cee ceh cei cek ceo cet ch- chb chc che chh chi chk cho cht ci- cib cic cie cih cii cik cio cit ckb ckc ckh cki cko ckt co- cob coc coe coh coi cok coo cot ctb ctc cte cth cti ctk cto ctt ebb ebc ebe ebh ebi ebk ebo ebt ec- ecb ecc ece ech eci eck eco ect eeb eec eee eek eeo eet ehb ehc ehe ehh ehi eho eht eib eic eie eii eik eio eit ekb ekc eke ekh eki eko ekt eo- eob eoc eoe eoh eoi eok eoo eot etb etc ete eth eti etk eto ett h-i hbb hbc hbe hbh hbi hbk hbo hbt hcb hcc hce hch hci hck hco hct he- heb hec hee heh hei hek heo het hhb hhc hhe hhh hhi hhk hho hht hib hic hie hih hii hik hio hit hkb hkh hki hkk hko hkt hob hoc hoe hoh hoi hok hoo hot htb htc hte hth hti htk hto htt ibb ibc ibe ibh ibi ibk ibo ibt icb icc ice ich ici ick ico ict ie- iec iee iei iek iet ihb ihc ihe ihh ihi ihk iho iht iib iic iie iih iii iio iit ikb ikc ike iki ikk iko ikt io- iob ioc ioe ioh ioi ioo iot itb itc ite ith iti itk ito itt k-t kbb kbc kbe kbh kbi kbk kbo kcb kcc kce kch kci kck kct ke- keb kec kee keh kei kek keo ket khe khh khi khk kho kib kic kie kih kii kik kio kit kkb kkc kke kkh kki kkk kkt kob koc koe koh koi kok koo kot ktb ktc kte kth ktk kto ktt o-i ob- obb obc obe obh obi obk obo obt oc- ocb occ och oci ock oco oct oeb oec oee oeh oei oeo oet ohc ohe ohh ohi oho oht oib oic oie oii oik oio oit okb okc oke oki okk oko oo- oob ooc ooh ooi ook ooo oot ot- otb otc ote oth oti otk oto ott tbb tbc tbe tbh tbi tbk tbo tbt tcb tcc tce tch tci tck tco tct te- teb tec tee teh tei tek teo tet th- thb thc the thh thi thk tho tht tib tic tie tih tii tik tio tit tkb tkc tke tkk tko tkt to- tob toc toe toh toi tok too tot ttb ttc tte tth tti ttk tto ttt