-ana a-ya aaaa aaab aaac aaan aaba aabb aabc aaby aaca aacb aacc aacn aacy aana abaa abab abac aban abay abb- abba abbb abby abca abcb abcc abcn abyc abyy abza acaa acab acac acan acba acca accc accy ana- anaa anab anac anan anaz anba anbb anca ancc ancy anna annb anny anya anza ayan ayay ayaz ayca ayna ayya aza- azab azan azay azaz azca azna azza baaa baan baaz baba babb baby bac- baca bacc bacn bacz bana banc bann banz baya bayz baza bazy bbay bbbb bcaa bcbc bcca bccc bnya byan bync bzyb bzzz caaa caab caac caan caba caby cac- caca cacc cana canc cann cany canz caza cazy cbac cbbc cbca cbcc cbcn cbna ccaa ccab ccac ccba ccbc ccbn ccca cccb cccc ccna ccnb ccnc ccny cnaa cnac cnbc cnna cnnz cya- cyaa cyan cyba cybb cybc cyc- cyca cycb cycc cyn- cyy- cyyc cyyn czyz naaa naab naac naan naba nabc naca nacc nan- nana nanb nann nany naya naza nazy nazz nbaa nbbc nbca nbcc ncaa ncac ncba ncbc ncca nccc nccn ncna ncnc nnnn nyaa nyac nycc nycy nyny nzcc yaan yaba yacc yacy yana yann yaya yaza yazz ycab yccc ynca yyyy zaan zaba zaby zaca zana zann zany zaya zayn zaza zzzz