a-ak a-be a-wa aaaa aaab aaac aaae aaba aabb aabc aabt aabw aaca aacb aacc aace aack aact aaea aaec aaka aake aata aatc aatk aatt aatw aawt aaww abaa abab abac abae abak abat abaw abb- abba abbb abbe abbt abca abcb abcc abct abcw abec abee abet abta abwa abwe ac-t acaa acab acac acae acat acba acca accc acce acct ace- acea acec acek acet acke ackw acta actc acte actt acwa acww aeac aecb aect aeka aeta aetc aett akaa akae akca akee akka akte akwa at-t ataa atab atac atae atak atat atca atcc atck atea atec atee atew atka atkt atta atte atwa atwt awac awae awbe awe- aweb awee awet awka awwa baaa baak baat baba babb babe bac- baca bacc bace back bact baek bak- baka bake bakt bata batc bate batt baw- bawe bawk bbbb bbeb bbet bbwc bcaa bcat bcbc bcca bccc bcec bcet bctc beak beat beaw beba bebb bebe beca beck beeb beek beet beka beke beta betc bete bett betw bewa bewe btaa btcc btec btek bttb btwc bwaa caaa caab caac caat caba cabe cac- caca cacc cace cack cacw caec caka cake cat- cata catb catc cate catt catw cawk cbac cbat cbbc cbca cbcc cbce cbct cbea cbec cbee cbet cbka cbta cbtc cbwa ccaa ccab ccac ccat ccba ccbc ccca cccb cccc ccee cckw cctb cctc cctt ceac ceat ceba cec- ceca cece cect ceeb ceec ceke cet- ceta cete cewa cewe ckac ckat ckbc ckbe ckck ckcw cktb ckww ctab ctae ctba ctca ctec ctta cttw cwac cweb eaba eaca eacc eaec eata eate ebac ebba ebbc ebbw ebcc ecaa ecac ecat ecbc ecbe ecca eccb eccc ecce ecct ecka ect- ecta ectc ecwa eeca eeea eeee eeka eeke eeta eetc eete eka- ekab ekeb ekek eket ekka ekta ekwe etak etat etbc etcc etec etee etka etta ette ewew ewte kaaa kaab kaak kaat kaba kabb kabc kabe kabw kacb kacc kace kact kacw kaet kaka kakc kake kakk kakt kat- kata katb katc kate katk katt katw kaw- kawa kawc kawe kawk kaww kbaa kbab kbac kbae kbak kbat kbba kbbb kbbc kbbe kbbk kbbt kbbw kbca kbcb kbce kbck kbct kbcw kbeb kbec kbee kbek kbet kbew kbkb kbkk kbkw kbta kbtb kbtc kbte kbtk kbtt kbtw kbwa kbwb kbwc kbww kcaa kcab kcac kcat kcaw kcba kcbc kcbk kcbw kcca kccb kccc kcck kcct kcea kceb kcec kcee kcet kckc kckk kcta kctb kctc kcte kcwa kcwb kcwc kcwe kcwk kcwt kea- keak keat keba kebb kebc kebe kebt keca keck keek keet keka kekb kekc keke ket- keta ketc kete ketk kett kewa kewb kewe kewt kkaa kkac kkat kkaw kkba kkbb kkbe kkbt kkcb kkck kkct kkcw kkea kkkk kktc kktk kkwb kkwe kkwk ktaa ktae ktak ktat ktba ktbb ktbc ktbt ktcc ktce ktck ktea ktec ktee ktek ktkb ktkc ktke ktkk ktkt kttc kttk kttt kttw ktwa ktwb kwab kwac kwak kwat kwaw kwbc kwbe kwbt kwbw kwca kwck kweb kwee kwka kwkb kwkc kwkk kwkw kwtw kwwk kwwt taa- taat taba tabb tabc tabe taca tacc tace tack tact taec taka take takk takt tata tatb tate tatt tawa tawe tawk tawt taww tbca tbcb tbcc tbce tbta tcca tccc tctc teac teak teat teaw teba teca teck tect teec teek teet teka teke teta tete tett tewa tkac ttab ttbb tttt twae twat twbt twee twke waaa waac waat waaw waba wabb wabc wabe wabk wabt wabw waca wacb wacc wace wack wact waeb waec waee waet waew waka wakb wake wakk wakt wakw wata watb watc wate watk watt watw wawa wawb wawc wawe wawk wawt wbaa wbab wbac wbae wbak wbat wbbb wbbe wbbk wbbt wbbw wbca wbcb wbce wbck wbct wbcw wbea wbeb wbec wbek wbet wbew wbka wbkb wbke wbkk wbkt wbkw wbta wbtc wbte wbtk wbtt wbtw wbwb wbwc wbwt wcab wcae wcat wcba wcbc wcbe wcbt wcbw wcca wccb wccc wcce wcck wcct wccw wceb wcec wcee wcet wcka wckb wckk wckt wckw wcta wctb wctc wcte wctk wctt wctw wcwa wcwb wcwc weaa weac weak weat webb webc webe webt weca wecb wecc weck wect wecw weeb weec week weet weka wekb wekc weke wekt wekw weta wetb wetc wete wetk wett wewc wewe wkaa wkac wkak wkat wkba wkbc wkbe wkbk wkbw wkca wkcb wkce wkct wkcw wkeb wket wkew wkkb wkkc wkkt wkkw wkta wktc wkte wktk wktt wkwc wtab wtac wtae wtaw wtbb wtbc wtbk wtca wtcb wtcc wtck wtct wtcw wtka wtkc wtke wtkk wtkt wtkw wtta wttb wttc wtte wttt wttw wtwa wtwb wtwk wtwt wtww wwab wwac wwba wwbb wwbc wwbt wwca wwcb wwck wwct wwcw wwea wweb wwec wwet wwka wwkb wwkc wwta wwtc wwtk wwtw wwwa wwwc wwwe wwwk wwww