a-ha aaaa aaab aaac aaad aaah aaas aaba aabb aabc aabd aabh aaca aacb aacc aacd aach aacs aacu aada aadc aads aadu aaha aahs aasa aasc aasd aass aasu aaus abaa abab abac abad abas abau abb- abba abbb abbs abca abcb abcc abcd abch abcs abda abdu abha abhs abs- absa absd abss absu abua abud abus acaa acab acac acad acas acba acca accc accd acch accs accu acda acdb acdc acds acha achh achs achu acsa acsc acsd acss acu- acus adaa adab adac adad adah adas adba adbc adcc adcs adda addc addd adds addu adha adhd adhs adhu adsa adss adua adub ahab ahac ahad ahah ahas ahau ahha ahhs ahsa ahss ahua ahus asaa asab asac asad asah asas asau asba asbu asc- asca ascb ascc asch asda asds asha ashs ashu assa assc assd assh asss assu asub asud asus auaa auca auch audc audh ausa ausd aush ausu baaa baad baah baas baba babb babs babu bac- baca bacc bach bacs bada badb badd badh bads badu baha bahs bahu basa basc bash bass basu bau- baud bbad bbas bbau bbbb bbbs bbch bbdd bbhs bcaa bcas bcbc bcbs bcca bccc bccs bcda bcds bchd bchs bcsa bcsc bcss bcuc bdbc bddc bddh bdhs bdsd bhca bhcc bhhs bhuu bsaa bsac bsas bsbd bscs bshs bssc bssd buad buba bubb bubs bubu buca bucc buch bucs bucu buda budb budd buds budu buha buhs busa busc bush buss busu buus c-cd caaa caab caac caah caas caba cabs cabu cac- caca cacc cach cada cadc cadd cads cadu caha cahs casa casb casc casd cash cass casu cauc caus cbac cbbc cbbs cbca cbcc cbcs cbcu cbdb cbdc cbds cbha cbhs cbsa cbsc cbus ccaa ccab ccac ccad ccas ccba ccbc ccca cccb cccc cccs cccu ccdc ccdh ccds ccha cchs ccsa ccsd ccss ccuc ccus cdaa cdac cdad cdba cdcs cdda cddb cdhs cdss chaa chab chac chad chah chas chau chca chch chcs chha chhs chsc chsh chua chub chud chus csaa csab csac csas cscb cscc cscd csch cscs csda csdb cshs cssa cssd csua csus cuau cub- cuba cubb cubs cuca cucc cuda cuds cusa cusb cusd cush cuss cusu daab daad daas daau daba dabb dabs dabu daca dacs dada dads dadu daha dahs dahu dasa dasb dasc dasd dash dass daub daud daus dbas dbcc dbcs dbhs dbsa dbss dbus dcas dcbc dcca dccb dccc dccs dccu dcdb dcds dchs dcsc dcss dddd ddss ddub dhaa dhad dhau dhsa dsac dsba dsbc dscc dsch dscs dsda dshs dssa dssc duaa duab duad duah duas dub- duba dubb dubc dubh dubs dubu duca duch ducs duda dudd duds dudu duha duhs duhu dusa dush haab haad haas haba habs habu hacs hada hadh hadu haha hahs hasa hasc hasd hash hass hau- haud haus hbbs hbcd hbds hbhs hbss hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcss hdca hdda hdhs hdss hhaa hhds hhhh hhhs hhus hsac hsad hsas hsbc hscc hshs hsua huac huah huas huba hubb hubs huch hucs hucu huda hudd huds hudu huhs huhu husa hush huss huub huus sa-c saab saac saad saah saas saba sabb sabc sabs sabu saca sacc sacd sacs sacu sada sadb sadc sadd sadh sads sadu saha sahs sahu sasa sasc sasd sash sass saua sauc saud sauh saus sbaa sbac sbas sbbs sbca sbcc sbcs sbds sbhc sbhs sbsa sbsd sbus scaa scab scac scad scas scba sccc sccs scda scdc scds sch- scha schh schs scsa scsc scsd scsh scsu scua scub scud sdau sdba sdcc sdch sddc sdds sdha sdhb sdhd sdhs sdsc sdss sdsu shab shac shad shah shas shau shbs shca shcc shha shhh shhs shsc shua shub shud shus shuu ssaa ssab ssac ssas ssau ssca sscc sscs ssdc ssdd sshs sssa sssb sssc sssh ssss suas sub- suba subb subd subh subs suc- succ such sucs suda sudd sudh suds suha suhb sus- susa susd suss susu suus uabc uaca uahs uasa uasd uaua ubac ubba ubud ucad ucas ucbc ucca ucdc ucdd ucha uchs ucsa ucsb ucsc ucsd ucsu ucua udaa udad udas udau udbc udca udds udsd uh-d uhss uhuh us-a usaa usac usad usas usba usbc usbs usca uscc usch uscs usda usdc usds usha ushs ushu ussa ussb ussc usss ussu usua usus uuuu