-ana aaaa aaab aaac aaan aaba aabb aabc aabt aaca aacb aacc aacn aact aana aata aatc aatt abaa abab abac aban abat abb- abba abbb abbt abca abcb abcc abcn abct abta ac-t acaa acab acac acan acat acba acca accc acct acta actc actt ana- anaa anab anac anan anat anba anbb anca ancc anct anna annb annt ant- anta antt at-t ataa atab atac atan atat atca atcc atna atta attn baaa baan baat baba babb bac- baca bacc bacn bact bana banc bann bant bata batc batn batt bbbb bcaa bcat bcbc bcca bccc bctc bnta btaa btan btcc bttb caaa caab caac caan caat caba cac- caca cacc cana canc cann cant cat- cata catb catc catt cbac cbat cbbc cbca cbcc cbcn cbct cbna cbta cbtc ccaa ccab ccac ccat ccba ccbc ccbn ccca cccb cccc ccna ccnb ccnc cctb cctc cctt cnaa cnac cnbc cnna cnta cntc ctab ctan ctba ctca ctta cttn naaa naab naac naan naat naba nabc naca nacc nan- nana nanb nann nant nata natc natt nbaa nbbc nbca nbcc ncaa ncac ncat ncba ncbc ncca nccc nccn ncct ncna ncnc ncta nctc nnnn nntn ntbc ntcc taa- taan taat taba tabb tabc taca tacc tact tana tann tant tata tatb tatt tbca tbcb tbcc tbta tcca tccc tcnn tctc tnbc tnca tncc ttab ttbb ttcn tttt