-al a-a a-b a-c aaa aab aac aah aal aam ab- aba abb abc abh abl abm ac- aca acb acc ach acl acm aha ahb ahc ahh ahl ahm al- ala alb alc alh all alm ama amb amc amh aml amm baa bab bac bah bal bam bba bbb bbc bbh bbl bbm bca bcb bcc bch bcl bcm bha bhb bhc bhh bhl bhm bla blb blc blh bll blm bma bmb bmc bmh bml bmm c-- caa cab cac cah cal cam cba cbb cbc cbh cbl cbm cca ccb ccc cch ccl ccm ch- cha chb chc chh chl chm cl- cla clb clc clh cll clm cma cmb cmc cmh cml cmm haa hab hac hah hal ham hba hbb hbc hbh hbl hbm hca hcb hcc hch hcl hcm hha hhb hhc hhh hhl hhm hla hlb hlc hlh hll hlm hma hmb hmc hmh hml hmm la- laa lab lac lah lal lam lba lbb lbc lbh lbl lbm lca lcb lcc lch lcl lcm lha lhb lhc lhh lla llb llc lll llm lma lmb lmc lmh lml lmm maa mab mac mah mal mam mba mbb mbc mbh mbl mbm mc- mca mcb mcc mch mcl mcm mha mhc mhh mhl mhm mla mlb mlc mlh mll mlm mma mmb mmc mmh mml mmm