a-a a-b a-c a-z aaa aab aac aak aam aar aay aaz ab- aba abb abc abk abm abr aby abz ac- aca acb acc ack acm acr acy acz aka akb akc akk akm akr ama amb amc amk amm amr amy amz ar- ara arb arc ark arm arr ary arz ay- aya ayc ayk ayr ayz az- aza azb azm azy azz baa bab bac bak bam bar bay baz bba bbb bbc bbk bbm bbr bby bca bcb bcc bck bcm bcr bcy bcz bka bkb bkc bkk bkm bkr bma bmb bmc bmk bmm bmr bmz bra brb brk brm brr bry brz by- bya byc byk bym byr byz bza bzr bzz c-- caa cab cac cak cam car cay caz cba cbb cbc cbk cbm cbr cby cbz cca ccb ccc cck ccm ccr ccz cka ckb ckc ckm cky cma cmb cmc cmk cmm cmr cmy cra crb crc crk crm crr cry crz cya cyb cyc cyk cym cyr cz- czc czk czm k-z ka- kaa kab kac kak kam kar kay kaz kba kbb kbc kbk kbm kbr kbz kca kcb kcc kck kcm kcr kkb kkc kkk kkm kkr kky kma kmb kmc kmk kmm kmz kra krc krk krr kry kya kyc kym kyr kyz kzy m-r maa mab mac mak mam mar may maz mba mbb mbc mbk mbm mbr mc- mca mcb mcc mck mcm mcr mcz mka mkb mkc mkk mkm mkr mky mkz mma mmb mmc mmk mmm mmr mmz mra mrb mrc mrk mrm mrr mry mrz my- mya myb myc myk mym myr mza mzb mzm ra- raa rab rac rak ram rar ray raz rba rbb rbc rbk rbm rbr rca rcb rcc rcm rcr rkb rkc rkk rkm rky rkz rma rmb rmc rmm rmr rra rrb rrc rrk rrm rrr ry- rya ryc ryk rym ryr ryy ryz rza rzb rzm rzy yaa yab yac yak yam yar yay yaz ybc ybm ybr yby ybz yca ycc ycy yka ykk ykm yma ymc ymm yra yrc yyb yyc yyy yyz yzb yzr yzy zaa zab zac zak zam zar zay zaz zbb zbc zbm zbr zby zka zma zmb zmc zmk zmm zym zzr zzy zzz