-ol b-u bbb bbc bbh bbl bbn bbo bbu bcb bcc bch bcl bcn bco bcu bhb bhc bhh bhl bho bhu blb blc blh bll bln blo blu bnb bnc bnl bnn bno bnu bob boc boh bol bon boo bou bub buc buh bul bun buo buu c-- cbb cbc cbh cbl cbn cbo cbu ccb ccc cch ccl ccn cco ccu ch- chb chc chh chl chn cho chu cl- clb clc clh cll cln clo clu cn- cnb cnc cnh cnl cnn cno cnu co- cob coc coh col con coo cou cub cuc cuh cul cun cuo cuu hbb hbc hbh hbl hbn hbo hbu hcb hcc hch hcl hcn hco hhb hhc hhh hhl hhn hho hhu hlb hlc hlh hll hln hlo hlu hnb hnc hnh hnl hnn hno hnu hob hoc hoh hol hon hoo hou hub huc huh hul hun huo huu lbb lbc lbh lbl lbo lbu lcb lcc lch lcl lcn lco lcu lhb lhc lhh lho lhu llb llc lll lln llo llu lnb lnc lnh lnl lnn lno lnu lob loc loh lol lon loo lou lub luc luh lul lun luo luu nbb nbc nbl nbn nbo nbu ncb ncc nch ncl ncn nco ncu nhb nhc nhh nhl nhn nhu nlb nlc nlh nll nln nlo nlu nnb nnc nnh nnl nnn nno nnu no- nob noc noh nol non noo nou nub nuc nuh nul nun nuo nuu ob- obb obc obh obl obn obo obu oc- ocb occ och ocl ocn oco ocu ohc ohh ohl ohn oho ohu olb olc oll oln olo olu on- onb onc onh onl onn ono onu oo- oob ooc ooh ool oon ooo ou- ouc ouh oul oun ouo ubb ubc ubh ubl ubn ubo ubu ucb ucc uch ucl ucn uco ucu uhb uhc uhh uhl uho uhu ulb ulc ull uln ulo ulu un- unb unc unh unl unn uno unu uob uoc uol uon uoo uuc uun uuu