a-a a-c aaa aac aam aap aas aay ac- aca acc acm acp acs acy ama amc amm amp ams amy ap- apa apc apm app aps apy as- asa asc asm asp ass asy ay- aya ayc ayp ays c-- caa cac cam cap cas cay cca ccc ccm ccp ccs cma cmc cmm cmp cms cmy cpa cpc cpm cpp cps csa csc csm csp css csy cya cyc cym cyp cys maa mac mam map mas may mc- mca mcc mcm mcp mcs mma mmc mmm mmp mms mpa mpc mpm mpp mps msa msc msm msp mss msy my- mya myc mym mys p-p paa pac pam pap pas pay pca pcc pcm pcp pcs pma pmc pmm pmp pms ppa ppc ppm ppp pps ps- psa psc psm psp pss psy py- pya pyc pym pys saa sac sam sap sas say sca scc scm scp scs sma smc smm smp sms smy spa spc spm spp sps spy ss- ssa ssc ssm ssp sss sy- sya syc sym syp sys yaa yac yam yap yas yay yca ycc ycp ycs ycy yma ymc ymm yms ypa yps ysa ysc ysm ysp yss ysy yyc yys yyy