-er -ic -th b-u bbb bbc bbe bbh bbi bbr bbs bbt bbu bcb bcc bce bch bci bcr bcs bct bcu be- beb bec bee beh bei ber bes bet beu bhb bhc bhe bhh bhi bhr bhs bht bhu bi- bib bic bie bih bii bir bis bit biu brb bre brh bri brr brs brt bru bsb bsc bse bsh bsi bsr bss bst bsu btb btc bte bth bti btr bts btt btu bub buc bue buh bui bur bus but buu c-- cbb cbc cbe cbh cbi cbr cbs cbt cbu ccb ccc cce cch cci ccr ccs cct ccu ce- ceb cec cee ceh cei cer ces cet ceu ch- chb chc che chh chi chr chs cht chu ci- cib cic cie cih cii cir cis cit ciu crb crc cre crh cri crr crs crt cru csb csc cse csh csi csr css cst csu ctb ctc cte cth cti ctr cts ctt ctu cub cuc cue cuh cui cur cus cut cuu ebb ebc ebe ebh ebi ebr ebs ebt ebu ec- ecb ecc ece ech eci ecr ecs ect ecu eeb eec eee eer ees eet ehb ehc ehe ehh ehi ehr ehs eht ehu eib eic eie eii eir eis eit eiu erb erc ere erh eri err ers ert eru es- esb esc ese esh esi esr ess est esu etb etc ete eth eti etr ets ett etu eu- eub euc eue eui eur eus eut h-i hbb hbc hbe hbh hbi hbr hbs hbt hbu hcb hcc hce hch hci hcr hcs hct he- heb hec hee heh hei her hes het heu hhb hhc hhe hhh hhi hhr hhs hht hhu hib hic hie hih hii hir his hit hiu hr- hrb hrc hre hrh hri hrr hrs hrt hru hsb hsc hse hsh hsi hsr hss hst hsu htb htc hte hth hti htr hts htt hub huc hue huh hui hur hus hut huu ibb ibc ibe ibh ibi ibr ibs ibt ibu icb icc ice ich ici icr ics ict icu ie- iec iee iei ier ies iet ihb ihc ihe ihh ihi ihr ihs iht ihu iib iic iie iih iii iir iis iit iiu ir- irb irc ire iri irr irs irt iru is- isb isc ise ish isi isr iss ist isu itb itc ite ith iti its itt itu iu- iub iuc iue iui iur ius iut rbb rbc rbe rbh rbi rbr rbs rbt rbu rcb rcc rce rch rci rcr rcs rct rcu re- reb rec ree reh rei rer res ret reu rh- rhb rhc rhe rhh rhi rhr rhs rht rhu rib ric rie rih rii rir ris rit rrb rrc rrh rri rrr rrs rrt rru rsb rsc rse rsh rsi rsr rss rst rsu rtb rtc rte rti rtr rts rtt rtu rub ruc rue ruh rui rur rus rut ruu sbb sbc sbe sbh sbi sbr sbs sbt sbu scb scc sce sch sci scr scs sct scu se- seb sec see seh sei ser ses set seu sh- shb shc she shh shi shr shs sht shu sib sic sie sih sii sir sis sit siu sr- srb src sre srh sri srr srs srt ss- ssb ssc sse ssh ssi ssr sss sst ssu stb stc ste sth sti str sts stt stu sub suc sue suh sui sur sus sut suu tbb tbc tbe tbh tbi tbr tbs tbt tbu tcb tcc tce tch tci tcr tcs tct tcu te- teb tec tee teh tei ter tes tet teu th- thb thc the thh thi thr ths tht thu tib tic tie tih tii tir tis tit tiu trb trc tre trh tri trr trs trt tru tsb tsc tse tsh tsi tsr tss tst tsu ttb ttc tte tth tti ttr tts ttt ttu tub tuc tue tuh tui tur tus tut tuu ubb ubc ube ubh ubi ubr ubs ubt ubu ucb ucc uce uch uci ucr ucs uct ucu ueb uec uee ueh uei uer ues uet uhb uhc uhe uhh uhi uhr uhs uht uhu uib uic uie uii uir uis uit uiu ur- urb urc ure uri urr urs urt uru usb usc use ush usi usr uss ust usu utb utc ute uth uti utr uts utt utu uuc uue uur uus uut uuu