-er -ic b-u bbb bbc bbe bbh bbi bbk bbr bbs bbu bcb bcc bce bch bci bck bcr bcs bcu be- beb bec bee beh bei bek ber bes beu bhb bhc bhe bhh bhi bhk bhr bhs bhu bi- bib bic bie bih bii bik bir bis biu bkb bkc bke bkk bkr bks brb bre brh bri brk brr brs bru bsb bsc bse bsh bsi bsk bsr bss bsu bub buc bue buh bui buk bur bus buu c-- cbb cbc cbe cbh cbi cbk cbr cbs cbu ccb ccc cce cch cci cck ccr ccs ccu ce- ceb cec cee ceh cei cek cer ces ceu ch- chb chc che chh chi chk chr chs chu ci- cib cic cie cih cii cik cir cis ciu ckb ckc ckh cki cks crb crc cre crh cri crk crr crs cru csb csc cse csh csi csk csr css csu cub cuc cue cuh cui cuk cur cus cuu ebb ebc ebe ebh ebi ebk ebr ebs ebu ec- ecb ecc ece ech eci eck ecr ecs ecu eeb eec eee eek eer ees ehb ehc ehe ehh ehi ehr ehs ehu eib eic eie eii eik eir eis eiu ekb ekc eke ekh eki ekr eks eku erb erc ere erh eri erk err ers eru es- esb esc ese esh esi esk esr ess esu eu- eub euc eue eui eur eus h-i hbb hbc hbe hbh hbi hbk hbr hbs hbu hcb hcc hce hch hci hck hcr hcs he- heb hec hee heh hei hek her hes heu hhb hhc hhe hhh hhi hhk hhr hhs hhu hib hic hie hih hii hik hir his hiu hkb hkh hki hkk hkr hks hku hr- hrb hrc hre hrh hri hrk hrr hrs hru hsb hsc hse hsh hsi hsk hsr hss hsu hub huc hue huh hui huk hur hus huu ibb ibc ibe ibh ibi ibk ibr ibs ibu icb icc ice ich ici ick icr ics icu ie- iec iee iei iek ier ies ihb ihc ihe ihh ihi ihk ihr ihs ihu iib iic iie iih iii iir iis iiu ikb ikc ike iki ikk ikr iks iku ir- irb irc ire iri irk irr irs iru is- isb isc ise ish isi isk isr iss isu iu- iub iuc iue iui iur ius kbb kbc kbe kbh kbi kbk kbr kbs kbu kcb kcc kce kch kci kck kcr kcs kcu ke- keb kec kee keh kei kek ker kes khe khh khi khk khr khs khu kib kic kie kih kii kik kir kis kiu kkb kkc kke kkh kki kkk kkr kks kku krc kri krk krr krs kru ksb ksc kse ksh ksi ksk ksr kss ksu kub kuc kue kuh kui kuk kur kus kuu rbb rbc rbe rbh rbi rbk rbr rbs rbu rcb rcc rce rch rci rcr rcs rcu re- reb rec ree reh rei rek rer res reu rh- rhb rhc rhe rhh rhi rhr rhs rhu rib ric rie rih rii rik rir ris rkb rkc rke rkk rks rku rrb rrc rrh rri rrk rrr rrs rru rsb rsc rse rsh rsi rsk rsr rss rsu rub ruc rue ruh rui ruk rur rus ruu sbb sbc sbe sbh sbi sbk sbr sbs sbu scb scc sce sch sci sck scr scs scu se- seb sec see seh sei sek ser ses seu sh- shb shc she shh shi shk shr shs shu sib sic sie sih sii sik sir sis siu sk- skb skc ske skh ski skk skr sks sku sr- srb src sre srh sri srk srr srs ss- ssb ssc sse ssh ssi ssk ssr sss ssu sub suc sue suh sui suk sur sus suu ubb ubc ube ubh ubi ubk ubr ubs ubu ucb ucc uce uch uci uck ucr ucs ucu ueb uec uee ueh uei uer ues uhb uhc uhe uhh uhi uhr uhs uhu uib uic uie uii uir uis uiu ukb ukc uke uki ukk ukr uku ur- urb urc ure uri urk urr urs uru usb usc use ush usi usk usr uss usu uuc uue uur uus uuu

bbbb bbbs bbch bbci bbeb bbhs bbrc bcbc bcbs bccc bcci bccs bcec bcer bces bche bchs bcie bcis bcrs bcru bcsc bcss bcuc bebb bebe bebi bech beci beck becs becu beeb beek beer bees behr behs beic beik beir beis beke beki beks berc bere beri berk berr bers beru bes- bese besh besk bess beuk beur bhcc bher bhhs bhie bhir bhur bhuu bibb bibe bibi bibs bicc bice bich bici bick bics bieb bier bies bieu bihe bihi bihs bihu biis bike bikh biku birb bire biri birk birr birs biru bis- bisc bise bish bisk biss bisu bkhs brcb brce breb brec bree brei brek brer bres brhs bric brie brih brik bris brkb brrr brrs brsb brsr bruc brue bruh brus bsci bscs bseb bsec bsee bser bses bshs bsic bssc bsse bubb bube bubi bubs bubu bucc buce buch buci buck bucs bucu buer bueu buhe buhi buhr buhs buic buie buik buir buis buiu buke bukh buki bukk buku bur- burb bure burh buri burk burr burs buru busc buse bush busi busk buss busu buus cbbc cbbs cbcc cbce cbcr cbcs cbcu cbec cbee cber cbhs cbir cbkr cbre cbrh cbsc cbse cbsi cbus ccbc cccb cccc ccci cccs cccu ccee cche cchr cchs ccic ccii ccir ccis ccrc ccre ccri ccrs ccsi ccss ccuc ccus cebs cebu cec- cece ceci cecs ceeb ceec cees cehs ceke cer- cerc cere ceri cers cesc cese cesi cesr cess ceui chce chch chci chcs cheb chec chee cheh chek cher ches cheu chhs chib chic chie chih chik chir chis chiu chkb chks chrb chrc chrr chrs chsc chse chsh chsi chsr chub chui chuk chur chus cibc cibe cibi cicc cich cici cicr cics cicu ciee cier cies cihr cihs