a-a a-c aaa aac aam aap aay ac- aca acc acm acp acy ama amc amm amp amy ap- apa apc apm app apy ay- aya ayc ayp c-- caa cac cam cap cay cca ccc ccm ccp cma cmc cmm cmp cmy cpa cpc cpm cpp cya cyc cym cyp maa mac mam map may mc- mca mcc mcm mcp mma mmc mmm mmp mpa mpc mpm mpp my- mya myc mym p-p paa pac pam pap pay pca pcc pcm pcp pma pmc pmm pmp ppa ppc ppm ppp py- pya pyc pym yaa yac yam yap yay yca ycc ycp ycy yma ymc ymm ypa yyc yyy