-al a-a a-c aaa aac aah aal aax ac- aca acc ach acl acx aha ahc ahh ahl ahx al- ala alc alh all alx ax- axa axh axl axx c-- caa cac cah cal cax cca ccc cch ccl ccx ch- cha chc chh chl chx cl- cla clc clh cll clx cxc cxh cxl cxx haa hac hah hal hax hca hcc hch hcl hha hhc hhh hhl hla hlc hlh hll hlx hxc hxl la- laa lac lah lal lax lca lcc lch lcl lcx lha lhc lhh lhx lla llc lll lxc lxx xaa xac xal xch xcl xcx xla xxl xxx