-ic -th bbb bbc bbe bbh bbi bbk bbo bbs bbt bcb bcc bce bch bci bck bco bcs bct be- beb bec bee beh bei bek beo bes bet bhb bhc bhe bhh bhi bhk bho bhs bht bi- bib bic bie bih bii bik bio bis bit bkb bkc bke bkk bko bks bkt bob boc boe boh boi bok boo bos bot bsb bsc bse bsh bsi bsk bso bss bst btb btc bte bth bti btk bto bts btt c-- cbb cbc cbe cbh cbi cbk cbo cbs cbt ccb ccc cce cch cci cck cco ccs cct ce- ceb cec cee ceh cei cek ceo ces cet ch- chb chc che chh chi chk cho chs cht ci- cib cic cie cih cii cik cio cis cit ckb ckc ckh cki cko cks ckt co- cob coc coe coh coi cok coo cos cot csb csc cse csh csi csk cso css cst ctb ctc cte cth cti ctk cto cts ctt ebb ebc ebe ebh ebi ebk ebo ebs ebt ec- ecb ecc ece ech eci eck eco ecs ect eeb eec eee eek eeo ees eet ehb ehc ehe ehh ehi eho ehs eht eib eic eie eii eik eio eis eit ekb ekc eke ekh eki eko eks ekt eo- eob eoc eoe eoh eoi eok eoo eos eot es- esb esc ese esh esi esk eso ess est etb etc ete eth eti etk eto ets ett h-i hbb hbc hbe hbh hbi hbk hbo hbs hbt hcb hcc hce hch hci hck hco hcs hct he- heb hec hee heh hei hek heo hes het hhb hhc hhe hhh hhi hhk hho hhs hht hib hic hie hih hii hik hio his hit hkb hkh hki hkk hko hks hkt hob hoc hoe hoh hoi hok hoo hos hot hsb hsc hse hsh hsi hsk hss hst htb htc hte hth hti htk hto hts htt ibb ibc ibe ibh ibi ibk ibo ibs ibt icb icc ice ich ici ick ico ics ict ie- iec iee iei iek ies iet ihb ihc ihe ihh ihi ihk iho ihs iht iib iic iie iih iii iio iis iit ikb ikc ike iki ikk iko iks ikt io- iob ioc ioe ioh ioi ioo ios iot is- isb isc ise ish isi isk iso iss ist itb itc ite ith iti itk ito its itt k-t kbb kbc kbe kbh kbi kbk kbo kbs kcb kcc kce kch kci kck kcs kct ke- keb kec kee keh kei kek keo kes ket khe khh khi khk kho khs kib kic kie kih kii kik kio kis kit kkb kkc kke kkh kki kkk kks kkt kob koc koe koh koi kok koo kos kot ksb ksc kse ksh ksi ksk kso kss kst ktb ktc kte kth ktk kto kts ktt o-i ob- obb obc obe obh obi obk obo obs obt oc- ocb occ och oci ock oco ocs oct oeb oec oee oeh oei oeo oes oet ohc ohe ohh ohi oho ohs oht oib oic oie oii oik oio ois oit okb okc oke oki okk oko oks oo- oob ooc ooh ooi ook ooo oos oot os- osb osc ose osh osi osk oso oss ost ot- otb otc ote oth oti otk oto ots ott sbb sbc sbe sbh sbi sbk sbo sbs sbt scb scc sce sch sci sck sco scs sct se- seb sec see seh sei sek seo ses set sh- shb shc she shh shi shk sho shs sht sib sic sie sih sii sik sio sis sit sk- skb skc ske skh ski skk sko sks skt sob soc soe soh soi sok soo sos sot ss- ssb ssc sse ssh ssi ssk sso sss sst stb stc ste sth sti stk sto sts stt tbb tbc tbe tbh tbi tbk tbo tbs tbt tcb tcc tce tch tci tck tco tcs tct te- teb tec tee teh tei tek teo tes tet th- thb thc the thh thi thk tho ths tht tib tic tie tih tii tik tio tis tit tkb tkc tke tkk tko tks tkt to- tob toc toe toh toi tok too tos tot tsb tsc tse tsh tsi tsk tso tss tst ttb ttc tte tth tti ttk tto tts ttt