a-a a-c aaa aac aah aam aax aay ac- aca acc ach acm acx acy aha ahc ahh ahm ahx ahy ama amc amh amm amx amy ax- axa axh axm axx ay- aya ayc ayh ayx c-- caa cac cah cam cax cay cca ccc cch ccm ccx ch- cha chc chh chm chx chy cma cmc cmh cmm cmx cmy cxc cxh cxx cya cyc cym haa hac hah ham hax hay hca hcc hch hcm hcy hha hhc hhh hhm hhy hma hmc hmh hmm hmx hmy hxc hxm hy- hya hyc hyh hym hyy maa mac mah mam max may mc- mca mcc mch mcm mcx mha mhc mhh mhm mhx mma mmc mmh mmm mmx mxa mxc my- mya myc myh mym myx xaa xac xam xch xcx xma xmc xmh xmm xmx xxx xxy xyy yaa yac yah yam yax yay yca ycc ych ycy yha yhc yma ymc ymm yxa yxy yyc yyy