bbbb bbch bcbc bccc bcnu bcuc bhcc bhuu bubb bubu bucc buch buck bucu bukh bukk buku bunb bunk bunn bunu cbbc cbcc cbcn cbcu cbkn ccbc ccbn cccb cccc cccu ccnb ccnc ccnu ccuc chch chkb chnb chnc chub chuk chun ckbc ckch ckck cknb cknc cnbc cub- cubb cucc cuck cucn cuk- hcbc hccb hccc hcch hhhh hkbu hkcc hubb huch huck hucu huhn huhu hunc hunh hunk huub kbbb kbbc kbbk kbbu kbcb kbch kbck kbcu kbhb kbhc kbhh kbhn kbkb kbkk kbnh kbnn kbnu kbub kbuc kbuk kbun kbuu kcbc kcbk kcbu kccb kccc kcck kccu kchh kchk kchn kchu kckc kckk kckn kcnb kcnh kcub kcuh kcuk khbc khcb khcc khch khck khhk khkk khkn khnc khnk khnu khub khuk khun kkbb kkbn kkcb kkch kkck kkcn kkhb kkhh kkhk kkkk kknb kknn kknu kkuu knbb knbc knbn knbu kncb knch knck kncn kncu knhc knhk knkk knnb knnk knub knuk kubb kubc kubu kucb kucc kuch kuhn kuhu kukh kukk kukn kuku kunc kunk kunu kuub kuuk kuuu nbbc nbcc ncbc nccc nccn nccu nchc ncnc ncuk nhcc nhnn nnnn nubc nubk nuch nuck nucu nuku nunc nunk nunn nuuk ucbc uhuh ukcc uknc uncc unch unkn uuuu