-ic a-a a-b a-c a-i a-z aaa aab aac aai aak aaz ab- aba abb abc abi abk abz ac- aca acb acc aci ack acz ai- aia aib aic aii aik aiz aka akb akc aki akk az- aza azb azi azz baa bab bac bai bak baz bba bbb bbc bbi bbk bca bcb bcc bci bck bcz bi- bia bib bic bii bik biz bka bkb bkc bkk bza bzz c-- caa cab cac cai cak caz cba cbb cbc cbi cbk cbz cca ccb ccc cci cck ccz ci- cia cib cic cii cik cka ckb ckc cki cz- czc czk ia- iaa iab iac iai iaz iba ibb ibc ibi ibk ibz ica icb icc ici ick icz iia iib iic iii ika ikb ikc iki ikk iza izi izz k-z ka- kaa kab kac kai kak kaz kba kbb kbc kbi kbk kbz kca kcb kcc kci kck kia kib kic kii kik kiz kkb kkc kki kkk zaa zab zac zai zak zaz zbb zbc zia zib zik ziz zka zzz