bbbb bbci bblb bcbc bcbp bccc bcci bccl bcpl bcpp bcuc bcup bibb bibi bibl bicc bici bili bill bilu bipp bipu blcu blic blip blub blup bpcp bubb bubi bubu bucc buci bucu buic buiu bulb buli bull bulu bupc cbbc cbcc cbcl cbcp cbcu cblb cblc cbpc cbpp ccbc cccb cccc ccci cccl cccp cccu ccic ccii ccil ccip cclc ccli ccpl ccpp ccuc ccup cibc cibi cicc cici cicu ciii cili cill cilp cipp ciuc ciup clib clic clii clip clpb clpp club cpbc cpcu cpic cplc cub- cubb cubi cucc cuci cui- cuil culb culc cull culp cupl cupp icbc icbp iccb iccc icci iccl iccp iccu icll iclp icpc icub icup iiii iiuc ilbc ilic ill- illi illp ipcc ipil ippc iucc iuiu iupp lbcc lcbc lccc lcpc lcpl libc libu liii lilb lili lill lilu lip- lipb lipc lipi lipl lipp lipu llcc lllc llll lppl luci luli lull lulu lupi lupu luup pbcc pbil pblu pcbc pccc pccl pcip pcll pcpb pcpp pibb pibi picc pici picu piip pil- pili pill pilu pipi pipp plcc plib plip plpp plup ppcc ppci ppib ppic ppli pppp publ pubu puiu puli pull pulp pulu pupi pupl pupu puuc ubbi ubic ubii ubli ubpc ucbc ucci uccp ucil ucpb uipi ulbc ulcc ulic ulli ulul upci upic uplb uppc uppp uppu upup uucp uulu uuuu