-ol bbb bbc bbh bbl bbm bbo bcb bcc bch bcl bcm bco bhb bhc bhh bhl bhm bho blb blc blh bll blm blo bmb bmc bmh bml bmm bmo bob boc boh bol bom boo c-- cbb cbc cbh cbl cbm cbo ccb ccc cch ccl ccm cco ch- chb chc chh chl chm cho cl- clb clc clh cll clm clo cmb cmc cmh cml cmm cmo co- cob coc coh col com coo hbb hbc hbh hbl hbm hbo hcb hcc hch hcl hcm hco hhb hhc hhh hhl hhm hho hlb hlc hlh hll hlm hlo hmb hmc hmh hml hmm hmo hob hoc hoh hol hom hoo lbb lbc lbh lbl lbm lbo lcb lcc lch lcl lcm lco lhb lhc lhh lho llb llc lll llm llo lmb lmc lmh lml lmm lmo lob loc loh lol lom loo m-o mbb mbc mbh mbl mbm mbo mc- mcb mcc mch mcl mcm mco mhc mhh mhl mhm mho mlb mlc mlh mll mlm mlo mmb mmc mmh mml mmm mmo mob moc moh mol mom moo ob- obb obc obh obl obm obo oc- ocb occ och ocl ocm oco ohc ohh ohl ohm oho olb olc oll olm olo om- omb omc omh oml omm omo oo- oob ooc ooh ool oom ooo