a-a a-b a-i a-z aaa aab aad aai aas aaz ab- aba abb abd abi abs abz ad- ada adb add adi ads adz ai- aia aib aid aii ais aiz as- asa asb asd asi ass asz az- aza azb azd azi azs azz baa bab bad bai bas baz bba bbb bbd bbi bbs bda bdb bdd bdi bds bdz bi- bia bib bid bii bis biz bsa bsb bsd bsi bss bza bzd bzs bzz daa dab dad dai das daz dba dbb dbd dbi dbs dbz dda ddb ddd ddi dds ddz di- dia dib did dii dis diz dsa dsb dsd dsi dss dsz dza dzb dzd dzi dzs i-d ia- iaa iab iad iai ias iaz iba ibb ibd ibi ibs ibz ida idb idd idi ids iia iib iid iii iis is- isa isb isd isi iss iza izi izz saa sab sad sai sas saz sba sbb sbd sbi sbs sda sdb sdd sdi sds sdz sia sib sid sii sis ss- ssa ssb ssd ssi sss ssz sza szd szi zaa zab zad zai zas zaz zbb zbs zds zia zib zid zis ziz zsa zsi zsz zzs zzz