-al a-a a-c aaa aac aae aal aam aax ac- aca acc ace acl acm acx aea aec aee ael aem aex al- ala alc ale all alm alx ama amc ame aml amm amx ax- axa axe axl axm axx c-- caa cac cae cal cam cax cca ccc cce ccl ccm ccx ce- cea cec cee cel cem cex cl- cla clc cle cll clm clx cma cmc cme cml cmm cmx cxc cxl cxx eaa eac eae eal eam eax ec- eca ecc ece ecl ecm ecx eea eec eee eel eem eex ela elc ele ell elm elx em- ema emc eme eml emm emx ex- exa exc exe exl exx la- laa lac lae lal lam lax lca lcc lce lcl lcm lcx lea lec lee lel lem lex lla llc lle lll llm lma lmc lme lml lmm lxc lxx maa mac mae mal mam max mc- mca mcc mce mcl mcm mcx mea mec mee mel mem mex mla mlc mle mll mlm mlx mma mmc mme mml mmm mmx mxa mxc mxl xaa xac xal xam xcl xcx xee xel xem xex xla xlm xma xmc xml xmm xmx xxl xxx