-ic -th bbb bbc bbh bbi bbk bbo bbr bbt bcb bcc bch bci bck bco bcr bct bhb bhc bhh bhi bhk bho bhr bht bi- bib bic bih bii bik bio bir bit bkb bkc bkk bko bkr bkt bob boc boh boi bok boo bor bot brb brh bri brk bro brr brt btb btc bth bti btk bto btr btt c-- cbb cbc cbh cbi cbk cbo cbr cbt ccb ccc cch cci cck cco ccr cct ch- chb chc chh chi chk cho chr cht ci- cib cic cih cii cik cio cir cit ckb ckc ckh cki cko ckt co- cob coc coh coi cok coo cor cot crb crc crh cri crk cro crr crt ctb ctc cth cti ctk cto ctr ctt h-i hbb hbc hbh hbi hbk hbo hbr hbt hcb hcc hch hci hck hco hcr hct hhb hhc hhh hhi hhk hho hhr hht hib hic hih hii hik hio hir hit hkb hkh hki hkk hko hkr hkt hob hoc hoh hoi hok hoo hor hot hr- hrb hrc hrh hri hrk hro hrr hrt htb htc hth hti htk hto htr htt ibb ibc ibh ibi ibk ibo ibr ibt icb icc ich ici ick ico icr ict ihb ihc ihh ihi ihk iho ihr iht iib iic iih iii iio iir iit ikb ikc iki ikk iko ikr ikt io- iob ioc ioh ioi ioo ior iot ir- irb irc iri irk iro irr irt itb itc ith iti itk ito itt k-t kbb kbc kbh kbi kbk kbo kbr kcb kcc kch kci kck kcr kct khh khi khk kho khr kib kic kih kii kik kio kir kit kkb kkc kkh kki kkk kkr kkt kob koc koh koi kok koo kor kot krc kri krk kro krr krt ktb ktc kth ktk kto ktr ktt o-i ob- obb obc obh obi obk obo obr obt oc- ocb occ och oci ock oco ocr oct ohc ohh ohi oho ohr oht oib oic oii oik oio oir oit okb okc oki okk oko okr oo- oob ooc ooh ooi ook ooo oor oot or- orb orc orh ori ork oro orr ort ot- otb otc oth oti otk oto otr ott rbb rbc rbh rbi rbk rbo rbr rbt rcb rcc rch rci rco rcr rct rh- rhb rhc rhh rhi rho rhr rht rib ric rih rii rik rio rir rit rkb rkc rkk rko rkt rob roc roh roi rok roo ror rot rrb rrc rrh rri rrk rrr rrt rtb rtc rti rtk rto rtr rtt tbb tbc tbh tbi tbk tbo tbr tbt tcb tcc tch tci tck tco tcr tct th- thb thc thh thi thk tho thr tht tib tic tih tii tik tio tir tit tkb tkc tkk tko tkr tkt to- tob toc toh toi tok too tor tot trb trc trh tri trk tro trr trt ttb ttc tth tti ttk tto ttr ttt