a-ha aaaa aaab aaac aaad aaah aaal aaba aabb aabc aabd aabh aabl aaca aacb aacc aacd aach aacl aacu aada aadc aadu aaha aahl aala aalc aald aall aalu abaa abab abac abad abal abau abb- abba abbb abca abcb abcc abcd abch abcl abda abdu abha abla abua abud abul acaa acab acac acad acba acbl acca accc accd acch accu acda acdb acdc acha achh achl achu acla aclc aclu acu- acul adaa adab adac adad adah adal adba adbc adcc adda addc addd addl addu adha adhd adhu adua adub ahab ahac ahad ahah ahal ahau ahdl ahha ahla ahlu ahua alaa alac alad alal alau alb- alba albc albu alca alcc ald- alda aldl alha all- alla allh alll allu alua auaa auca auch audc audh aul- aula auld aull aulu baaa baad baah baal baba babb babu bac- baca bacc bach bada badb badd badh badu baha bahl bahu bala balc bald ball balu bau- baud baul bbad bbau bbbb bbch bbdd bblb bcaa bcbc bcca bccc bccl bcda bchd bcuc bdbc bddc bddh bhca bhcc bhdl bhuu blaa blab blac blad blah blau blcu bldc blub blud buad bual buba bubb bubu buca bucc buch bucu buda budb budd budl budu buha buhl bula bulb buld bull bulu c-cd caaa caab caac caah caal caba cabu cac- caca cacc cach cada cadc cadd cadu caha cahl cala calc cald call calu cauc caul cbac cbal cbbc cbca cbcc cbcl cbcu cbdb cbdc cbha cbhl cblb cblc ccaa ccab ccac ccad ccba ccbc ccca cccb cccc cccl cccu ccdc ccdh ccha cchl ccla cclc ccuc cdaa cdac cdad cdba cdda cddb cddl chaa chab chac chad chah chal chau chca chch chha chlc chua chub chud chul clab clad clau clcd cldc club clud cluh cuau cub- cuba cubb cuca cucc cuda cula culb culc culd cull daab daad daal daau daba dabb dabu daca dada dadu daha dahl dahu dala dall dalu daub daud dbcc dcbc dcca dccb dccc dccl dccu dcdb dddd ddlc ddub dhaa dhad dhal dhau dhul dlab dlbd dlha duaa duab duad duah dual dub- duba dubb dubc dubh dubu duca duch duda dudd dudu duha duhl duhu dula dulc dull dulu duul haab haad haal haba habu hada hadh hadl hadu haha hal- hala halb hald hall halu hau- haud haul hbcd hcbc hcca hccb hccc hcch hdca hdda hhaa hhcl hhhh hhla hlah hlul huac huah huba hubb hubl huch hucu huda hudd hudl hudu huhu hula hulc huld hull hulu huub laaa laac laad laal laba labu laca lacc lach lacl lacu lada ladd ladu laha lahu lala lald lall lalu laub laud laul lbcc lcac lcad lcbc lcca lccc lcdd lchc ldha lhau lhhh llcc lldb lldc lllc llll llud luah luau luba luca luch luda ludd luhu lula lull lulu luua uabc uaca uald uaua ubac ubal ubba ubla ubud ucad ucal ucbc ucca ucdc ucdd ucha ucla ucua udaa udad udal udau udbc udca uh-d uhcl uhuh ulaa ulad ulbc ulcc ulch ulla ulua ulul uulu uuuu