-ic -th bbb bbc bbh bbi bbo bbr bbs bbt bby bcb bcc bch bci bco bcr bcs bct bcy bhb bhc bhh bhi bho bhr bhs bht bi- bib bic bih bii bio bir bis bit biy bob boc boh boi boo bor bos bot boy brb brh bri bro brr brs brt bry bsb bsc bsh bsi bso bsr bss bst bsy btb btc bth bti bto btr bts btt bty by- byc byh byi byo byr bys byt c-- cbb cbc cbh cbi cbo cbr cbs cbt cby ccb ccc cch cci cco ccr ccs cct ch- chb chc chh chi cho chr chs cht chy ci- cib cic cih cii cio cir cis cit co- cob coc coh coi coo cor cos cot coy crb crc crh cri cro crr crs crt cry csb csc csh csi cso csr css cst csy ctb ctc cth cti cto ctr cts ctt cty cyb cyc cyo cyr cys cyt h-i hbb hbc hbh hbi hbo hbr hbs hbt hby hcb hcc hch hci hco hcr hcs hct hcy hhb hhc hhh hhi hho hhr hhs hht hhy hib hic hih hii hio hir his hit hob hoc hoh hoi hoo hor hos hot hoy hr- hrb hrc hrh hri hro hrr hrs hrt hsb hsc hsh hsi hsr hss hst hsy htb htc hth hti hto htr hts htt hty hy- hyb hyc hyh hyi hyo hyr hys hyt hyy ibb ibc ibh ibi ibo ibr ibs ibt iby icb icc ich ici ico icr ics ict icy ihb ihc ihh ihi iho ihr ihs iht ihy iib iic iih iii iio iir iis iit io- iob ioc ioh ioi ioo ior ios iot ir- irb irc iri iro irr irs irt iry is- isb isc ish isi iso isr iss ist isy itb itc ith iti ito its itt ity iyc iyo iyr iys iyt iyy o-i ob- obb obc obh obi obo obr obs obt oby oc- ocb occ och oci oco ocr ocs oct ohc ohh ohi oho ohr ohs oht oib oic oii oio oir ois oit oo- oob ooc ooh ooi ooo oor oos oot or- orb orc orh ori oro orr ors ort ory os- osb osc osh osi oso osr oss ost ot- otb otc oth oti oto otr ots ott oyi oyo oys rbb rbc rbh rbi rbo rbr rbs rbt rcb rcc rch rci rco rcr rcs rct rh- rhb rhc rhh rhi rho rhr rhs rht rib ric rih rii rio rir ris rit riy rob roc roh roi roo ror ros rot roy rrb rrc rrh rri rrr rrs rrt rsb rsc rsh rsi rso rsr rss rst rtb rtc rti rto rtr rts rtt rty ry- ryc ryo ryr rys ryy sbb sbc sbh sbi sbo sbr sbs sbt sby scb scc sch sci sco scr scs sct sh- shb shc shh shi sho shr shs sht shy sib sic sih sii sio sir sis sit sob soc soh soi soo sor sos sot soy sr- srb src srh sri sro srr srs srt sry ss- ssb ssc ssh ssi sso ssr sss sst stb stc sth sti sto str sts stt sty sy- syb syc syh syi syr sys syt tbb tbc tbh tbi tbo tbr tbs tbt tcb tcc tch tci tco tcr tcs tct th- thb thc thh thi tho thr ths tht thy tib tic tih tii tio tir tis tit tiy to- tob toc toh toi too tor tos tot toy trb trc trh tri tro trr trs trt try tsb tsc tsh tsi tso tsr tss tst tsy ttb ttc tth tti tto ttr tts ttt tty tyc tyo tyr tys tyt ybc ybi ybr ybs yby ycc ych yci yco ycs ycy yhc yhi yhs yht yih yii yio yir yis yit yob yoc yoi yoo yor yos yot yoy yrc yro yrs yrt ysb ysc ysi yso ysr yss yst ysy ytc yth yto ytr yts ytt yyb yyc yys yyt yyy