a-ha aaaa aaab aaac aaad aaah aaba aabb aabc aabd aabh aaca aacb aacc aacd aach aacu aada aadc aadu aaha aahz abaa abab abac abad abau abb- abba abbb abca abcb abcc abcd abch abda abdu abha abua abud abza abzu acaa acab acac acad acba acca accc accd acch accu acda acdb acdc acha achh achu acu- adaa adab adac adad adah adba adbc adcc adda addc addd addu adha adhd adhu adq- adua adub ahab ahac ahad ahah ahaq ahau ahaz ahha ahua aqda aqu- aqua auaa auca auch audc audh aza- azab azad azaz azca azua azud azza baaa baad baah baaz baba babb babu bac- baca bacc bach bacz bada badb badd badh badu baha bahu baqa bau- baud baza bbad bbau bbbb bbbq bbch bbdd bcaa bcbc bcca bccc bcda bchd bcuc bdbc bddc bddh bdzh bhca bhcc bhuu buad buba bubb bubq bubu buca bucc buch bucu bucz buda budb budd budu buha buqa buuz buza buzz bzzz c-cd caaa caab caac caah caba cabu cac- caca cacc cach cada cadc cadd cadu caha caqh cauc caza cazh cbac cbbc cbca cbcc cbcu cbdb cbdc cbha ccaa ccab ccac ccad ccba ccbc ccca cccb cccc cccu ccdc ccdh ccha ccuc cdaa cdac cdad cdba cdda cddb cdza chaa chab chac chad chah chau chaz chca chch chha chua chub chud chuq cuau cub- cuba cubb cuca cucc cucq cuda daab daad daau daba dabb dabu daca dada dadu daha dahu daub daud dazu dazz dbcc dcbc dcca dccb dccc dccu dcdb dchq dddd ddub dhaa dhad dhau dhqd dqcd dqdb duaa duab duad duah dub- duba dubb dubc dubh dubu duca duch duda dudd dudu duha duhu duqu dzbb dzca dzh- dzhh dzhu dzud haab haad haba habu hada hadh hadu haha hau- haud hauz haza hbcd hcbc hcca hccb hccc hcch hdca hdda hhaa hhhh hqac huac huah huba hubb huch hucu huda hudd hudu huhu huqa huub huzz qa-c qada qaha qcad qhub qqqq quaa quab quad quah quba qucu quh- quu- uabc uaca uaua ubac ubba ubud ucad ucbc ucca ucdc ucdd ucha ucua udaa udad udau udbc udca uh-d uhuh uqac uqah uqcc uqhu uuuu uzda uzuh zaba zabu zaca zach zada zaha zaqq zaza zazu zhuz zubu zuzu zzhz zzzz