-ana a-ha aaaa aaab aaac aaah aaan aaba aabb aabc aabh aabt aaca aacb aacc aach aacn aact aaha aana aata aatc aatt abaa abab abac aban abat abb- abba abbb abbt abca abcb abcc abch abcn abct abha abta ac-t acaa acab acac acan acat acba acca accc acch acct acha achh acht acta actc acth actt ahab ahac ahah ahat ahha ahta ana- anaa anab anac anah anan anat anba anbb anca ancc anct anha anna annb annt ant- anta anth antt at-t ataa atab atac atan atat atca atcc atch atha atna atta attn baaa baah baan baat baba babb bac- baca bacc bach bacn bact baha bahn baht bana banc banh bann bant bata batc bath batn batt bbbb bbch bcaa bcat bcbc bcca bccc bctc bhan bhat bhca bhcc bnta btaa btan btcc bttb caaa caab caac caah caan caat caba cac- caca cacc cach caha cahn caht cana canc canh cann cant cat- cata catb catc cath catt cbac cbat cbbc cbca cbcc cbcn cbct cbha cbna cbta cbtc ccaa ccab ccac ccat ccba ccbc ccbn ccca cccb cccc ccha ccna ccnb ccnc cctb cctc cctt chaa chab chac chah chan chat chca chch chha chnb chnc chtt cnaa cnac cnbc cnna cnta cntc ctab ctan ctba ctca ctta cttn haab haan haat haba habt haha hahn haht hana hanc hann hant hata hatb hath hatt hcat hcbc hcca hccb hccc hcch hhaa hhat hhhh hnat hnna hntb htab htan htcc naaa naab naac naan naat naba nabc naca nacc nach naha naht nan- nana nanb nann nant nata natc nath natt nbaa nbbc nbca nbcc ncaa ncac ncat ncba ncbc ncca nccc nccn ncct ncha nchc ncna ncnc ncta nctc nhcc nhnn nnnn nntn ntbc ntcc nthn ntht taa- taan taat taba tabb tabc taca tacc tach tact taha tahn tana tanh tann tant tata tatb tath tatt tbca tbcb tbcc tbta tcca tccc tch- tcha tchh tcnn tctc thaa than that thca thch thnt thtb tnbc tnca tncc ttab ttbb ttcn tttt