bbbb bbci bblb bcbc bccc bcci bccl bcit bctc bcuc bibb bibi bibl bicc bici bili bill bilt bilu bily bitc bitt bitu blbt blcu blic blit blub blut bly- btcc btcl bttb bubb bubi bubu bucc buci bucu buic buit buiu bulb buli bull bult bulu but- buti butt buty buyi buyl buyu byil byit bylt byul cbbc cbcc cbcl cbct cbcu cbit cblb cblc cbtc cbtl cbyt ccbc cccb cccc ccci cccl cccu ccic ccii ccil cclc ccli cctb cctc cctl cctt ccuc ccut cibc cibi cicc cici cict cicu ciii ciit cili cill cilt citb citi citl citt citu city ciuc ciyu clib clic clii clit cltb cltc club clut cly- ctbi ctic cub- cubb cubi cuby cucc cuci cui- cuil cuit culb culc cull cult cut- cutc cutt cuy- cuyl cybb cybc cybi cyc- cycb cycc cycl cyl- cylc cyll cyt- cytb cyul cyy- cyyc i-by ibly ibtb ibtc ibtl ibuy ibyi icbc iccb iccc icci iccl icct iccu icll icub iiii iiit iitt iiuc ilbc ilic ilit ill- illi illt illy ilut iluy itby itic itil itll itty iucc iuiu iuty lbcc lcbc lccc lctl libc libu lict liii lilb lili lill lilt lilu lily litb liti litl litt litu lity liut liyl liyu llcc lllc llll ltbl ltcc ltci ltib lttc ltuc luby luci lucy luit luli lull lulu luti luyi luyt lyc- lyit lyly lytt tbcb tbcc tbil tbit tcby tccc tccu tctc tcul tibi tibu ticc tiit tiiu till tilt tily titc titi titt titu tiyi tlli ttbb tttt ttul ttyl tubb tubu tucc tuil tuit tuiu tuli tull tulu tuly tuti tutl tutt tutu tuty tuyl tybi tyl- tyll tyti tytt tyty ubbi ubic ubii ubit ubli ubly ucbc ucci ucil ucut ulbc ulcc ulic ulli ully ulti ultt ulul utby util utti uttu uulu uuuu yccc yctc yili yill yilt yiti ylli yubu yuit yuli yulu yutu yuty yuyu yyyy