-ana a-ha aaaa aaab aaac aaah aaan aaba aabb aabc aabh aaca aacb aacc aach aacn aagh aaha aana aang abaa abab abac abag aban abb- abba abbb abca abcb abcc abch abcn abha acaa acab acac acag acan acba acca accc acch acga acha achh agac agag agan agba agca agcc agga agha agna ahab ahac ahah ahha ana- anaa anab anac anag anah anan anba anbb anca ancc ang- anga anha anna annb baaa baah baan baba babb bac- baca bacc bach bacn baga bagg bagh bagn baha bahn bana banc bang banh bann bbbb bbch bbga bbng bcaa bcbc bcbg bcca bccc bgan bgca bhag bhan bhca bhcc caaa caab caac caah caan caba cabg cac- caca cacc cach caga cagg cagn caha cahn cana canc cang canh cann cbac cbbc cbca cbcc cbcn cbga cbgb cbha cbna ccaa ccab ccac ccag ccba ccbc ccbn ccca cccb cccc ccga ccgc ccha ccna ccnb ccnc cgac cgcc cgcg chaa chab chac chag chah chan chca chch chgb chgn chha chnb chnc cnaa cnac cnag cnbc cnna gaba gabb gach gaga gagg gaha gahn gana ganc gang gann gbag gban gc-c gcaa gcbc gccc gcna gggg gghg ghan gnaa gnac gncc gngc haab haag haan haba hag- haga hagg hagh haha hahn hana hanc hang hann hbag hcbc hcca hccb hccc hcch hcgh hcng hgah hggc hhaa hhgg hhhh hnna naaa naab naac naag naan naba nabc naca nacc nach naga nagc naha nan- nana nanb nang nann nbaa nbbc nbca nbcc ncaa ncac ncba ncbc ncca nccc nccn ncga ncha nchc ncna ncnc ngab ngac ngan nhcc nhnn nngn nnnn