-ana a-ha a-wa aaaa aaab aaac aaah aaan aaba aabb aabc aabh aabw aaca aacb aacc aach aacn aaha aana aaww abaa abab abac aban abaw abb- abba abbb abca abcb abcc abch abcn abcw abha abwa abwh acaa acab acac acan acba acca accc acch acha achh acwa acww ahab ahac ahah ahha ahwa ana- anaa anab anac anah anan anba anbb anca ancc anha anna annb awac awan awwa baaa baah baan baba babb bac- baca bacc bach bacn baha bahn bana banc banh bann baw- bawn bbbb bbch bbwc bcaa bcbc bcca bccc bhan bhca bhcc bwaa bwan caaa caab caac caah caan caba cac- caca cacc cach cacw caha cahn cana canc canh cann cbac cbbc cbca cbcc cbcn cbha cbna cbwa ccaa ccab ccac ccba ccbc ccbn ccca cccb cccc ccha ccna ccnb ccnc chaa chab chac chah chan chaw chca chch chha chnb chnc cnaa cnac cnbc cnna cwac haab haan haba haha hahn hana hanc hann hawa hawc hawn hcaw hcbc hcca hccb hccc hcch hhaa hhhh hnna hwan naaa naab naac naan naba nabc naca nacc nach naha nan- nana nanb nann nawa nbaa nbbc nbca nbcc ncaa ncac ncba ncbc ncca nccc nccn ncha nchc ncna ncnc ncwc nhcc nhnn nnnn nwac nwbn nwbw waaa waac waah waaw waba wabb wabc wabh wabn wabw waca wacb wacc wach waha wahb wahn wan- wana wanb wanc wann wawa wawb wawc wbaa wbab wbac wban wbbb wbbn wbbw wbca wbcb wbch wbcn wbcw wbha wbhb wbhc wbhh wbhn wbhw wbna wbnb wbnc wbnh wbnw wbwb wbwc wbwn wcab wcba wcbc wcbh wcbw wcca wccb wccc wcch wccn wccw wcha wchb wchc wchn wcna wcnc wcnh wcnn wcnw wcwa wcwb wcwc wcwn whaa whab whac whan whaw whbb whbc whbn whca whcb whcc whcn whhb whhh whhn whhw whna whnc whnn whwa whwb whwc whwh whwn wnaa wnab wnac wnah wnaw wnba wnbb wnbc wnbh wnbn wnbw wnca wncb wncc wnch wncn wncw wnhc wnhw wnnc wnnh wnnw wnwc wnwn wnww wwab wwac wwba wwbb wwbc wwbn wwca wwcb wwch wwcn wwcw wwhb wwhn wwna wwnb wwnc wwnh wwnn wwnw wwwa wwwc wwwh wwwn wwww