bbbb bbci bbin bblb bcbc bccc bcci bccl bcnu bcuc bibb bibi bibl bicc bici biin bili bill bilu bin- binc bini binn binu blcu blic blin blni blub bnib bnin bubb bubi bubu bucc buci bucu buic buin buiu bulb buli bull bulu bunb buni bunn bunu cbbc cbcc cbcl cbcn cbcu cblb cblc cbln ccbc ccbn cccb cccc ccci cccl cccu ccic ccii ccil cclc ccli ccnb ccnc ccni ccnu ccuc cibc cibi cicc cici cicu ciii cili cill cin- cinc cini ciuc clib clic clii clin club clun cnbc cnbl cnci cnib cnic cub- cubb cubi cucc cuci cucn cui- cuil cuin culb culc cull icbc iccb iccc icci iccl iccn iccu icll icnb icnc icub iiii iiuc ilbc ilic ilin ill- illi ilni incb inci incl inni innu inui inul inun iucc iuiu lbcc lcbc lccc libc libu liii liin lilb lili lill lilu linc linn liun llcc lllc llll luci luin luli lull lulu luni lunn n-ii nbbc nbcc nbci nbic ncbc ncbi nccc ncci nccn nccu nclc ncln ncnc nibi nicc nici nicl nicu niiu nili nill nilu nini ninl nlcc nlic nnnn nubc nubi nubl nuci nucu nuin nuli null nunc nunn ubbi ubic ubii ubli ucbc ucci ucil ucin ulbc ulcc ulic ulli ulul uncc unci uncl uni- unic unii unin unni uulu uuni uuuu