a-ak a-ha aaaa aaab aaac aaah aaba aabb aabc aabh aabt aaca aacb aacc aach aack aact aaha aahk aaka aata aatc aatk aatt abaa abab abac abak abat abb- abba abbb abbt abca abcb abcc abch abct abha abta ac-t acaa acab acac acat acba acca accc acch acct acha achh acht acta actc acth actt ahab ahac ahah ahat ahha ahta akaa akah akca akha akka at-t ataa atab atac atak atat atca atcc atch atck atha atka atkt atta baaa baah baak baat baba babb bac- baca bacc bach back bact baha baht bak- baka bakh bakt bata batc bath batt bbbb bbch bcaa bcat bcbc bcca bccc bctc bhat bhca bhcc btaa btcc bttb caaa caab caac caah caat caba cac- caca cacc cach cack caha caht caka cat- cata catb catc cath catt cbac cbat cbbc cbca cbcc cbct cbha cbka cbta cbtc ccaa ccab ccac ccat ccba ccbc ccca cccb cccc ccha cctb cctc cctt chaa chab chac chah chak chat chca chch chha chka chkb chkt chtt ckac ckat ckbc ckch ckck cktb ctab ctba ctca ctta haab haak haat haba habt hack haha haht haka hakk hata hatb hath hatt hcat hcbc hcca hccb hccc hcch hhaa hhat hhhh hkcc htab htcc kaaa kaab kaak kaat kaba kabb kabc kacb kacc kach kact kaha kahc kaht kaka kakc kakh kakk kakt kat- kata katb katc kath katk katt kbaa kbab kbac kbak kbat kbba kbbb kbbc kbbk kbbt kbca kbcb kbch kbck kbct kbhb kbhc kbhh kbht kbkb kbkk kbta kbtb kbtc kbtk kbtt kcaa kcab kcac kcah kcat kcba kcbc kcbk kcca kccb kccc kcck kcct kcha kchh kchk kckc kckk kcta kctb kctc khab khac khak khat khbc khbt khca khcb khcc khch khck khct khhk khka khkk khtb khth khtk khtt kkaa kkac kkat kkba kkbb kkbt kkcb kkch kkck kkct kkha kkhb kkhh kkhk kkkk kktc kktk ktaa ktak ktat ktba ktbb ktbc ktbt ktcc ktch ktck kthc kthh kthk ktht ktkb ktkc ktkk ktkt kttc ktth kttk kttt taa- taat taba tabb tabc taca tacc tach tack tact taha taka takk takt tata tatb tath tatt tbca tbcb tbcc tbta tcca tccc tch- tcha tchh tctc thaa thak that thca thch thtb tkac ttab ttbb tttt