bbbb bbci bcbc bccc bcci bcuc bibb bibi bicc bici bick biku bivi bubb bubi bubu bucc buci buck bucu buic buik buiu buki bukk buku cbbc cbcc cbcu cbvb ccbc cccb cccc ccci cccu cccv ccic ccii cciv ccuc ccvi cibc cibi cicc cici cicu ciii ciuc civc ckbc ckbi ckck ckcv cub- cubb cubi cucc cuci cuck cui- cuk- cvcc cvii icbc iccb iccc icci iccu icub iiii iiuc ikki iucc iucv iuiu ivbv ivic k-ci kbbb kbbc kbbi kbbk kbbu kbcb kbci kbck kbcu kbib kbic kbik kbiu kbkb kbkk kbkv kbub kbuc kbuk kbuu kbvb kbvc kbvu kcbc kcbi kcbk kcbu kccb kccc kcci kcck kccu kccv kcic kcii kciu kciv kckc kckk kckv kcub kcui kcuk kcvi kcvk kcvu kcvv kibb kibc kibi kibu kicb kicc kick kiic kiii kiik kiiu kikc kiki kikk kiku kiuu kivi kivu kkbb kkbi kkcb kkci kkck kkic kkik kkkk kkuu kkvu kkvv kubb kubc kubu kucb kucc kuci kucv kuic kuik kuki kukk kuku kuub kuuk kuuu kuvi kvbc kvcb kvcc kvci kvck kvcu kvcv kvic kvik kviv kvui kvuu kvvv ubbi ubic ubii ubik ucbc ucci ukcc uuuu uv-b uv-c uvic uvvu vbcc vcbi vcci vic- vici vick viii viik viki vivi vuku vvvv