-ol -th b-u bbb bbc bbh bbl bbn bbo bbt bbu bcb bcc bch bcl bcn bco bct bcu bhb bhc bhh bhl bho bht bhu blb blc blh bll bln blo blt blu bnb bnc bnl bnn bno bnt bnu bob boc boh bol bon boo bot bou btb btc bth btl btn bto btt btu bub buc buh bul bun buo but buu c-- cbb cbc cbh cbl cbn cbo cbt cbu ccb ccc cch ccl ccn cco cct ccu ch- chb chc chh chl chn cho cht chu cl- clb clc clh cll cln clo clt clu cn- cnb cnc cnh cnl cnn cno cnt cnu co- cob coc coh col con coo cot cou ctb ctc cth ctl ctn cto ctt ctu cub cuc cuh cul cun cuo cut cuu hbb hbc hbh hbl hbn hbo hbt hbu hcb hcc hch hcl hcn hco hct hhb hhc hhh hhl hhn hho hht hhu hlb hlc hlh hll hln hlo hlt hlu hnb hnc hnh hnl hnn hno hnt hnu hob hoc hoh hol hon hoo hot hou htb htc hth htl htn hto htt hub huc huh hul hun huo hut huu lbb lbc lbh lbl lbo lbt lbu lcb lcc lch lcl lcn lco lct lcu lhb lhc lhh lho lht lhu llb llc lll lln llo llt llu lnb lnc lnh lnl lnn lno lnt lnu lob loc loh lol lon loo lot lou ltb ltc lth ltl lto ltt ltu lub luc luh lul lun luo lut luu nbb nbc nbl nbn nbo nbt nbu ncb ncc nch ncl ncn nco nct ncu nhb nhc nhh nhl nhn nht nhu nlb nlc nlh nll nln nlo nlt nlu nnb nnc nnh nnl nnn nno nnt nnu no- nob noc noh nol non noo not nou ntb ntc nth ntn nto ntt ntu nub nuc nuh nul nun nuo nut nuu ob- obb obc obh obl obn obo obt obu oc- ocb occ och ocl ocn oco oct ocu ohc ohh ohl ohn oho oht ohu olb olc oll oln olo olt olu on- onb onc onh onl onn ono ont onu oo- oob ooc ooh ool oon ooo oot ot- otb otc oth otl otn oto ott otu ou- ouc ouh oul oun ouo out tbb tbc tbh tbl tbn tbo tbt tbu tcb tcc tch tcl tcn tco tct tcu th- thb thc thh thl thn tho tht thu tlc tlh tll tln tlo tlt tlu tnb tnc tnh tnl tnn tno tnt to- tob toc toh tol ton too tot tou ttb ttc tth ttl ttn tto ttt ttu tub tuc tuh tul tun tuo tut tuu ubb ubc ubh ubl ubn ubo ubt ubu ucb ucc uch ucl ucn uco uct ucu uhb uhc uhh uhl uho uht uhu ulb ulc ull uln ulo ult ulu un- unb unc unh unl unn uno unt unu uob uoc uol uon uoo uot utb utc uth utl utn uto utt utu uuc uun uut uuu