-ic -th b-u bbb bbc bbh bbi bbo bbr bbt bbu bcb bcc bch bci bco bcr bct bcu bhb bhc bhh bhi bho bhr bht bhu bi- bib bic bih bii bio bir bit biu bob boc boh boi boo bor bot bou brb brh bri bro brr brt bru btb btc bth bti bto btr btt btu bub buc buh bui buo bur but buu c-- cbb cbc cbh cbi cbo cbr cbt cbu ccb ccc cch cci cco ccr cct ccu ch- chb chc chh chi cho chr cht chu ci- cib cic cih cii cio cir cit ciu co- cob coc coh coi coo cor cot cou crb crc crh cri cro crr crt cru ctb ctc cth cti cto ctr ctt ctu cub cuc cuh cui cuo cur cut cuu h-i hbb hbc hbh hbi hbo hbr hbt hbu hcb hcc hch hci hco hcr hct hhb hhc hhh hhi hho hhr hht hhu hib hic hih hii hio hir hit hiu hob hoc hoh hoi hoo hor hot hou hr- hrb hrc hrh hri hro hrr hrt hru htb htc hth hti hto htr htt hub huc huh hui huo hur hut huu ibb ibc ibh ibi ibo ibr ibt ibu icb icc ich ici ico icr ict icu ihb ihc ihh ihi iho ihr iht ihu iib iic iih iii iio iir iit iiu io- iob ioc ioh ioi ioo ior iot iou ir- irb irc iri iro irr irt iru itb itc ith iti ito itt itu iu- iub iuc iui iur iut o-i ob- obb obc obh obi obo obr obt obu oc- ocb occ och oci oco ocr oct ocu ohc ohh ohi oho ohr oht ohu oib oic oii oio oir oit oiu oo- oob ooc ooh ooi ooo oor oot or- orb orc orh ori oro orr ort oru ot- otb otc oth oti oto otr ott otu ou- ouc ouh oui ouo our out rbb rbc rbh rbi rbo rbr rbt rbu rcb rcc rch rci rco rcr rct rcu rh- rhb rhc rhh rhi rho rhr rht rhu rib ric rih rii rio rir rit rob roc roh roi roo ror rot rou rrb rrc rrh rri rrr rrt rru rtb rtc rti rto rtr rtt rtu rub ruc ruh rui ruo rur rut ruu tbb tbc tbh tbi tbo tbr tbt tbu tcb tcc tch tci tco tcr tct tcu th- thb thc thh thi tho thr tht thu tib tic tih tii tio tir tit tiu to- tob toc toh toi too tor tot tou trb trc trh tri tro trr trt tru ttb ttc tth tti tto ttr ttt ttu tub tuc tuh tui tuo tur tut tuu ubb ubc ubh ubi ubo ubr ubt ubu ucb ucc uch uci uco ucr uct ucu uhb uhc uhh uhi uho uhr uht uhu uib uic uii uio uir uit uiu uob uoc uoo uor uot ur- urb urc uri uro urr urt uru utb utc uth uti uto utr utt utu uuc uur uut uuu