-ic a-a a-b a-c a-i a-z aaa aab aac aad aai aak aao aaz ab- aba abb abc abd abi abk abo abz ac- aca acb acc acd aci ack aco acz ad- ada adb adc add adi adk ado adz ai- aia aib aic aid aii aik aio aiz aka akb akc akd aki akk ako aoa aob aoc aod aoi aok aoo az- aza azb azd azi azo azz baa bab bac bad bai bak bao baz bba bbb bbc bbd bbi bbk bbo bca bcb bcc bcd bci bck bco bcz bda bdb bdc bdd bdi bdk bdo bdz bi- bia bib bic bid bii bik bio biz bka bkb bkc bkk bko boa bob boc bod boi bok boo boz bza bzd bzo bzz c-- caa cab cac cad cai cak cao caz cba cbb cbc cbd cbi cbk cbo cbz cca ccb ccc ccd cci cck cco ccz cda cdb cdc cdd cdi cdk cdo cdz ci- cia cib cic cid cii cik cio cka ckb ckc ckd cki cko co- coa cob coc cod coi cok coo coz cz- czc czd czk czo daa dab dac dad dai dak dao daz dba dbb dbc dbd dbi dbk dbo dbz dca dcb dcc dcd dci dck dco dda ddb ddc ddd ddi ddk ddo ddz di- dia dib dic did dii dik dio diz dka dkb dkc dki dkk dko doa dob doc dod doi dok doo doz dza dzb dzd dzi dzo i-d ia- iaa iab iac iad iai iao iaz iba ibb ibc ibd ibi ibk ibo ibz ica icb icc icd ici ick ico icz ida idb idc idd idi idk ido iia iib iic iid iii iio ika ikb ikc iki ikk iko io- ioa iob ioc iod ioi ioo iza izi izo izz k-z ka- kaa kab kac kad kai kak kao kaz kba kbb kbc kbd kbi kbk kbo kbz kca kcb kcc kcd kci kck kda kdb kdc kdk kdo kia kib kic kid kii kik kio kiz kkb kkc kki kkk koa kob koc kod koi kok koo koz kzo o-i oaa oab oac oad oai oak oao ob- oba obb obc obd obi obk obo oc- oca ocb occ ocd oci ock oco ocz oda odb odc odd odi odo oia oib oic oid oii oik oio oiz oka okb okc okd oki okk oko oo- ooa oob ooc ood ooi ook ooo oza ozo ozz zaa zab zac zad zai zak zao zaz zbb zbc zco zia zib zid zik zio ziz zka zo- zoa zob zoc zod zoi zok zoo zzz