a-ak a-ok aaaa aaac aaaf aaca aacc aacf aack aaco aafa aafc aaff aaka aaoo acaa acac acca accc accf acco acfc acoa afaa afak afao afca afcc affa affc affo afka afoa afoo ajac ajak ajao ajka ajkf ajoo akaa akao akca akka akko akok aoca caaa caac caaf cac- caca cacc cack caco cafa cafc caff caja caka ccaa ccac ccaf ccca cccc cccf ccfa ccfc ccff ccjo ccoc cfaa cfac cfao cfca cfcf cfco cfoa cjca cjcj ckac ckck ckco ckoa ckoc ckoo coak coca cock coco cofc coff cojo cok- coka coko coof cook f--k faaa faac faca facc fack fafa fafc faff fafo faja fako fcca fccf fccj ffcc ffff fjca foaf foak foca focj fock foco fofo foof fook jaaf jaak jaca jacc jack jaco jafa jafc jaff jaja jaka jako jccc jjcc joao joca jock joco jofa jojo joka joof jook kaaa kaaf kaak kacc kaco kafa kafc kaff kaja kajc kajk kajo kaka kakc kakj kakk kako kaoa kaoc kaok kcaa kcac kcca kccc kcck kcfa kcfc kcfj kcfo kcjc kcjf kcjj kcjk kckc kckf kckj kckk kcko kcof kfac kfcf kfco kffa kfff kffk kfjc kfjk kfka kfok kfoo kjaa kjac kjak kjcc kjck kjff kjfk kjjf kjjj kjjk kjjo kjkj kjkk kjoc kjoj kjok kkaa kkac kkcj kkck kkco kkjk kkkj kkkk kkoa kkoj kkoo koac koak koca kocf kock kofa kofc koff kofk kofo koja kojo koka kokc kokf kokk koko kooc kook kooo oafc oafo ocac ocak occa occc ocfa off- offa offc offo ojak ojok okak okja okka okko okok ooaa ooak ooff oooo