a-a a-c a-z aaa aac aam aap aas aaz ac- aca acc acm acp acs acz ama amc amm amp ams amz ap- apa apc apm app aps as- asa asc asm asp ass asz az- aza azm azp azs azz c-- caa cac cam cap cas caz cca ccc ccm ccp ccs ccz cma cmc cmm cmp cms cpa cpc cpm cpp cps cpz csa csc csm csp css csz cz- czc czm maa mac mam map mas maz mc- mca mcc mcm mcp mcs mcz mma mmc mmm mmp mms mmz mpa mpc mpm mpp mps msa msc msm msp mss mza mzm mzp p-p paa pac pam pap pas paz pca pcc pcm pcp pcs pma pmc pmm pmp pms pmz ppa ppc ppm ppp pps ppz ps- psa psc psm psp pss pzc pzm pzp saa sac sam sap sas saz sca scc scm scp scs sma smc smm smp sms smz spa spc spm spp sps spz ss- ssa ssc ssm ssp sss ssz sza szp zaa zac zam zap zas zaz zcs zma zmc zmm zmp zms zpc zpm zpp zsa zsm zsz zzs zzz