a-ak a-ha aaaa aaab aaac aaah aaar aaas aaba aabb aabc aabh aaca aacb aacc aach aack aacr aacs aaha aahk aahs aaka aara aarc aars aasa aasc aass abaa abab abac abak abar abas abb- abba abbb abbr abbs abca abcb abcc abch abcr abcs abha abhr abhs abra abrc abrs abs- absa abss acaa acab acac acar acas acba acca accc acch accs acha achh achr achs acks acr- acra acrc acrr acrs acsa acsc acss ahab ahac ahah ahar ahas ahha ahhs ahra ahrc ahrr ahrs ahsa ahss akaa akah akar akas akca akha akhs akka akr- akra aksa arab arac arah arak arar aras arba arbh arbs arc- arca arch arcs arh- arhs arka arkh arks arr- arra arrc arrh arrk arrr arrs ars- arsa arsc arsk asaa asab asac asah asak asar asas asba asc- asca ascb ascc asch ascr asha ashk ashs aska askr asks asra asrc asrs assa assc assh assk assr asss baaa baah baak baar baas baba babb babr babs bac- baca bacc bach back bacs baha bahr bahs bak- baka bakh bakr baks bar- bara barb barc barh bark barr bars basa basc bash bask bass bbas bbbb bbbs bbch bbhs bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bchs bcra bcrs bcsa bcsc bcss bhar bhca bhcc bhhs bhra bkhs brab brac brah brak bras brca brcb brhs brka brkb brrr brrs brsb brsr bsaa bsac bsas bscs bshs bsra bssc caaa caab caac caah caas caba cabs cac- caca cacc cach cack cacr caha cahs caka cara carb carc cark carr cars casa casb casc cash cask casr cass cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbha cbhs cbka cbkr cbrh cbsa cbsc ccaa ccab ccac ccar ccas ccba ccbc ccca cccb cccc cccs ccha cchr cchs ccra ccrc ccrs ccsa ccss chaa chab chac chah chak char chas chca chch chcs chha chhs chka chkb chks chra chrb chrc chrr chrs chsc chsh chsr ckac ckbc ckch ckck ckcs ckhs ckrc cksa cksb cksh crab crac crar cras crbc crca crcc crcr crhs crkc crsa crss csaa csab csac csak csar csas cscb cscc csch cscr cscs cshs cska csks csra csrc csrs cssa cssr haab haak haar haas haba habs hack hacs haha hahs haka hakk haks hara harc harh hark harr hars hasa hasc hash hask hass hbar hbbs hbhs hbrs hbss hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcss hhaa hhhh hhhs hkcc hkcs hrac hras hrhs hrrc hsac hsas hsbc hscc hshs kaaa kaab kaak kaar kaas kaba kabb kabc kabr kacb kacc kach kacs kaha kahc kahr kahs kaka kakc kakh kakk kaks kara karb kark karr kars kas- kasa kasb kasc kash kask kasr kass kbaa kbab kbac kbak kbar kbas kbba kbbb kbbc kbbk kbbr kbbs kbca kbcb kbch kbck kbcr kbcs kbhb kbhc kbhh kbhr kbhs kbkb kbkk kbkr kbra kbrb kbrc kbrh kbrk kbsa kbsb kbsk kbsr kbss kcaa kcab kcac kcah kcar kcas kcba kcbc kcbk kcbr kcbs kcca kccb kccc kcck kccr kcha kchh kchk kchr kchs kckc kckk kckr kcrc kcrh kcrr kcrs kcsa kcsb kcsc kcsr kcss khab khac khak khar khas khbc khbr khbs khca khcb khcc khch khck khcs khhk khhs khka khkk khkr khks khra khrk khrr khss kkaa kkac kkar kkba kkbb kkbr kkbs kkcb kkch kkck kkcr kkcs kkha kkhb kkhh kkhk kkhr kkkk kkrb kkrc kkrh kkrk kkrr kkrs kksa kksr kkss krab krac krah krak krar kras krba krbb krbk krbr krca krcb krcc krch krcs krhc krhs krka krkc krkh krkk krkr krks krrb krrc krrk krrr krrs krsa krsc krsh krsk krsr krss ksab ksac ksah ksak ksar ksas ksba ksbc ksbh ksbr ksbs ksca kscb ksch ksck kscr kscs ksha kshb kshk kshr kshs kska kskb kskk kskr ksks ksra ksrb ksrh ksrr ksrs kssa kssr ksss raab raak raas raba rabb rabk rabs rac- raca racc rach rack racs raha rahr rahs raka rakk rara rarb rark rars rasa rasc rash rask rass rbbb rbbr rbbs rbhs rbss rcac rcas rcbc rccb rccc rccs rchb rchs rcsa rcsc rcss rhhs rkss rrah rras rrhs rrrr rsaa rscc rsch rscs rshs rssa sa-c saab saac saah saak saar saas saba sabb sabc sabr sabs saca sacc sack sacr sacs saha sahk sahr sahs saka sakb sakk saks sara sarc sarh sark sarr sars sasa sasc sash sask sass sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbhc sbhk sbhs sbrk sbsa scaa scab scac scak scar scas scba sccc sccs sch- scha schh schr schs sck- scr- scra scrc scrs scsa scsc scsh scsr shab shac shah shak shar shas shbs shca shcc shha shhh shhs shrs shsc skab skac skar skhs skra skss sras srbc srcc srch srhs ssaa ssab ssac ssas ssbr ssca sscc sscs sshs ssra ssrc ssrs sssa sssb sssc sssh ssss