a-a a-c a-z aaa aac aam aao aar aay aaz ac- aca acc acm aco acr acy acz ama amc amm amo amr amy amz aoa aoc aom aoo aor ar- ara arc arm aro arr ary arz ay- aya ayc ayo ayr ayz az- aza azm azo azy azz c-- caa cac cam cao car cay caz cca ccc ccm cco ccr ccz cma cmc cmm cmo cmr cmy co- coa coc com coo cor coy coz cra crc crm cro crr cry crz cya cyc cym cyo cyr cz- czc czm czo m-o m-r maa mac mam mao mar may maz mc- mca mcc mcm mco mcr mcz mma mmc mmm mmo mmr mmz moa moc mom moo mor moy moz mra mrc mrm mro mrr mry mrz my- mya myc mym myo myr mza mzm oaa oac oam oao oar oc- oca occ ocm oco ocr ocz om- oma omc omm omo omr omy omz oo- ooa ooc oom ooo oor or- ora orc orm oro orr ory orz oya oyo oza ozm ozo ozz ra- raa rac ram rao rar ray raz rca rcc rcm rco rcr rma rmc rmm rmo rmr roa roc rom roo ror roy roz rra rrc rrm rrr ry- rya ryc rym ryo ryr ryy ryz rza rzm rzo rzy yaa yac yam yao yar yay yaz yca ycc yco ycy yma ymc ymm ymo yoc yom yoo yor yoy yra yrc yro yyc yyy yyz yzr yzy zaa zac zam zao zar zay zaz zco zma zmc zmm zo- zoa zoc zom zoo zor zro zym zzr zzy zzz