-ol b-u bbb bbc bbh bbl bbn bbo bbu bbx bcb bcc bch bcl bcn bco bcu bcx bhb bhc bhh bhl bho bhu bhx blb blc blh bll bln blo blu blx bnb bnc bnl bnn bno bnu bnx bob boc boh bol bon boo bou box bub buc buh bul bun buo buu bux bxb bxl bxn bxo bxx c-- cbb cbc cbh cbl cbn cbo cbu cbx ccb ccc cch ccl ccn cco ccu ccx ch- chb chc chh chl chn cho chu chx cl- clb clc clh cll cln clo clu clx cn- cnb cnc cnh cnl cnn cno cnu cnx co- cob coc coh col con coo cou cox cub cuc cuh cul cun cuo cuu cxc cxh cxl cxo cxx hbb hbc hbh hbl hbn hbo hbu hbx hcb hcc hch hcl hcn hco hhb hhc hhh hhl hhn hho hhu hlb hlc hlh hll hln hlo hlu hlx hnb hnc hnh hnl hnn hno hnu hob hoc hoh hol hon hoo hou hox hub huc huh hul hun huo huu hux hxc hxl lbb lbc lbh lbl lbo lbu lbx lcb lcc lch lcl lcn lco lcu lcx lhb lhc lhh lho lhu lhx llb llc lll lln llo llu lnb lnc lnh lnl lnn lno lnu lob loc loh lol lon loo lou lox lub luc luh lul lun luo luu lux lxc lxo lxx nbb nbc nbl nbn nbo nbu nbx ncb ncc nch ncl ncn nco ncu ncx nhb nhc nhh nhl nhn nhu nlb nlc nlh nll nln nlo nlu nlx nnb nnc nnh nnl nnn nno nnu no- nob noc noh nol non noo nou nox nub nuc nuh nul nun nuo nuu nux nxc nxl ob- obb obc obh obl obn obo obu obx oc- ocb occ och ocl ocn oco ocu ocx ohc ohh ohl ohn oho ohu olb olc oll oln olo olu on- onb onc onh onl onn ono onu onx oo- oob ooc ooh ool oon ooo oox ou- ouc ouh oul oun ouo ox- oxb oxc oxn oxo oxx ubb ubc ubh ubl ubn ubo ubu ubx 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 unx uob uoc uol uon uoo uox uuc uun uuu uxb uxc uxo uxu xbc xbl xbx xcb xch xcl xcx xlb xnc xno xnu xoc xon xoo xox xul xun xxl xxo xxx