b-u bbb bbc bbh bbl bbn bbu bcb bcc bch bcl bcn bcu bhb bhc bhh bhl bhu blb blc blh bll bln blu bnb bnc bnl bnn bnu bub buc buh bul bun buu c-- cbb cbc cbh cbl cbn cbu ccb ccc cch ccl ccn ccu ch- chb chc chh chl chn chu cl- clb clc clh cll cln clu cn- cnb cnc cnh cnl cnn cnu cub cuc cuh cul cun cuu hbb hbc hbh hbl hbn hbu hcb hcc hch hcl hcn hhb hhc hhh hhl hhn hhu hlb hlc hlh hll hln hlu hnb hnc hnh hnl hnn hnu hub huc huh hul hun huu lbb lbc lbh lbl lbu lcb lcc lch lcl lcn lcu lhb lhc lhh lhu llb llc lll lln llu lnb lnc lnh lnl lnn lnu lub luc luh lul lun luu nbb nbc nbl nbn nbu ncb ncc nch ncl ncn ncu nhb nhc nhh nhl nhn nhu nlb nlc nlh nll nln nlu nnb nnc nnh nnl nnn nnu nub nuc nuh nul nun nuu ubb ubc ubh ubl ubn ubu ucb ucc uch ucl ucn ucu uhb uhc uhh uhl uhu ulb ulc ull uln ulu un- unb unc unh unl unn unu uuc uun uuu