a-ak a-ha aaaa aaac aaae aaaf aaah aaca aacc aace aacf aach aack aaea aaec aafa aafc aaff aaha aahk aaka aake acaa acac acae acca accc acce accf acch ace- acea acec aceh acek acfc acfe acha ache achh acke aeac aeaf aeka afaa afak afca afcc afch afee afek affa affc afka ahac ahah ahfa ahha akaa akae akah akca akee akha akka caaa caac caaf caah cac- caca cacc cace cach cack caec cafa cafc cafe caff caha cahe caka cake ccaa ccac ccaf ccca cccc cccf ccee ccfa ccfc ccff ccha cche ceac cec- ceca cece ceec cef- cefa cefc ceke cfaa cfac cfae cfca cfcf cfhk chaa chac chae chaf chah chak chca chce chch chea chec chee chef cheh chek chfa chfc chha chka ckac ckch ckck eaaf eaca eacc each eaec ecaa ecac ecca eccc ecce ecef ecfa ecfc echa eche ecka eeca eeea eeee eefa eefe eeka eeke efca effa efke ehaa ehcc ehea eheh eka- ekch ekek ekfc ekka f--k faaa faac faah faca facc face fach fack fafa fafc fafe faff faha fake fakh fcca fccf fcch feaf feak fece fech feck feek fefc fefe feff feke ffcc ffee ffff haaf haak hace hack haec hafe haff haha haka hake hakk hcca hccc hcch hcfa hcfc heaf heah heca hech heck heef heek hefe hehe heka heke hfce hhaa hhhh hkcc hkfa kaaa kaaf kaak kacc kace kach kaeh kafa kafc kafe kaff kaha kahc kahe kaka kakc kake kakh kakk kcaa kcac kcah kcca kccc kcck kcea kcec kcee kcfa kcfc kcfh kcha kche kchf kchh kchk kckc kckf kckk kea- keak keca kech keck keef keeh keek kefa kefc keff kefh kehk keka kekc keke kfac kfcf kfch kffa kfff kffk kfhc kfka khac khaf khak khca khcc khcf khch khck khec khhk khka khke khkk kkaa kkac kkch kkck kkea kkha kkhh kkhk kkkk