a-a a-b a-i a-z aaa aab aai aam aas aaz ab- aba abb abi abm abs abz ai- aia aib aii aim ais aiz ama amb ami amm ams amz as- asa asb asi asm ass asz az- aza azb azi azm azs azz baa bab bai bam bas baz bba bbb bbi bbm bbs bi- bia bib bii bim bis biz bma bmb bmi bmm bms bmz bsa bsb bsi bsm bss bza bzs bzz ia- iaa iab iai iam ias iaz iba ibb ibi ibm ibs ibz iia iib iii iim iis im- ima imb imi imm ims imz is- isa isb isi ism iss iza izi izm izz maa mab mai mam mas maz mba mbb mbi mbm mbs mi- mia mib mii mim mis miz mma mmb mmi mmm mms mmz msa msb msi msm mss mza mzb mzi mzm saa sab sai sam sas saz sba sbb sbi sbm sbs sia sib sii sim sis sma smb smi smm sms smz ss- ssa ssb ssi ssm sss ssz sza szi zaa zab zai zam zas zaz zbb zbm zbs zia zib zim zis ziz zma zmb zmm zms zsa zsi zsm zsz zzs zzz