b-u bbb bbc bbd bbh bbk bbn bbo bbu bcb bcc bcd bch bck bcn bco bcu bdb bdc bdd bdh bdk bdo bdu bhb bhc bhd bhh bhk bho bhu bkb bkc bkk bkn bko bnb bnc bnd bnk bnn bno bnu bob boc bod boh bok bon boo bou bub buc bud buh buk bun buo buu c-- cbb cbc cbd cbh cbk cbn cbo cbu ccb ccc ccd cch cck ccn cco ccu cdb cdc cdd cdh cdk cdn cdo cdu ch- chb chc chd chh chk chn cho chu ckb ckc ckd ckh cko cn- cnb cnc cnd cnh cnn cno cnu co- cob coc cod coh cok con coo cou cub cuc cud cuh cuk cun cuo cuu dbb dbc dbd dbh dbk dbn dbo dbu dcb dcc dcd dck dcn dco dcu ddb ddc ddd ddh ddk ddn ddo ddu dh- dhb dhc dhd dhh dhk dho dhu dkb dkc dkk dko dku dnb dnc dnd dnh dnk dnn dno dob doc dod doh dok don doo dou dub duc dud duh duk dun duo hbb hbc hbd hbh hbk hbn hbo hbu hcb hcc hcd hch hck hcn hco hdb hdc hdd hdh hdk hdn hdo hdu hhb hhc hhd hhh hhk hhn hho hhu hkb hkd hkh hkk hkn hko hku hnb hnc hnd hnh hnk hnn hno hnu hob hoc hod hoh hok hon hoo hou hub huc hud huh huk hun huo huu kbb kbc kbd kbh kbk kbn kbo kbu kcb kcc kcd kch kck kcn kcu kdb kdc kdh kdk kdo kdu khh khk khn kho khu kkb kkc kkh kkk kkn kku kn- knc knd knk knn kno knu kob koc kod koh kok kon koo kou kub kuc kud kuh kuk kun kuu nbb nbc nbd nbk nbn nbo nbu ncb ncc ncd nch nck ncn nco ncu ndb ndc ndd ndh ndk ndn ndo ndu nhb nhc nhd nhh nhk nhn nhu nkc nkk nkn nko nku nnb nnc nnh nnk nnn nno nnu no- nob noc nod noh nok non noo nou nub nuc nud nuh nuk nun nuo nuu ob- obb obc obd obh obk obn obo obu oc- ocb occ ocd och ock ocn oco ocu odb odc odd odh odn odo odu ohc ohd ohh ohn oho ohu okb okc okd okk oko oku on- onb onc ond onh onk onn ono onu oo- oob ooc ood ooh ook oon ooo ou- ouc oud ouh ouk oun ouo ubb ubc ubh ubk ubn ubo ubu ucb ucc ucd uch uck ucn uco ucu udb udc udd udk udn udo udu uhb uhc uhd uhh uho uhu ukb ukc ukk ukn uku un- unb unc und unh unk unn uno unu uob uoc uod uok uon uoo uuc uun uuu

-hou bbbb bbch bbdd bbdo bcbc bccc bchd bcnu bcuc bdbc bddc bddh bhcc bhuu bnoc bobb bobo bobu boch bock boco bocu bodb bodh bodo bodu bohd bohn boho bohu bokn boko boku bonc bond bonk bonn bono bonu boob booc bood booh book boon boud bouh bouk boun bubb bubo bubu bucc buch buck buco bucu budb budd budo budu buho bukh bukk buko buku bunb bund bunk bunn buno bunu buon c-bo c-cd cbbc cbcc cbcn cbcu cbdb cbdc cbdn cbdo cbkn cbko cbnd ccbc ccbn cccb cccc cccu ccdc ccdh ccdn ccnb ccnc ccnu ccob ccoc ccod ccuc cddb cdnb cdnc cdon chch chkb chnb chnc chno choc chod choh chok chon choo chou chub chud chuk chun ckbc ckch ckck ckco ckdo ckdu cknb cknc ckob ckoc ckoo cnbc cnco cndd cnoh cobb cobh cobo cobu coch cock coco cocu codd cohn coho cok- coko con- conc cond conk conn cono coob cood cooh cook coon coub coud couk coun cub- cubb cucc cuck cucn cuk- cund cuno cuon d-bo dbcc dcbc dccb dccc dccu dcdb dcon dddd ddoc ddub dhod dhun dkdc dnoc dnuk dobb dobu doch dock doco docu dod- dodd dodo dohc doko donc dond donk donn dono doob dood dook doon doub douc doud douk doun dub- dubb dubc dubh dubu duch duck duco dudd dudo dudu duhu duku dunc dunk dunn duno duo- duon hbcd hboc hcbc hccb hccc hcch hdbk hdoc hdod hhhh hkbu hkcc hknd hndd hobo hoch hock hocn hodh hodk hohn hoho hoko hoku hond honk hono honu hood hook hoon houd houk hubb hubo huch huck hucu hudd hudo hudu huhn huhu hunc hund hunh hunk huon huub kbbb kbbc kbbd kbbk kbbo kbbu kbcb kbch kbck kbco kbcu kbdb kbdn kbdo kbhb kbhc kbhh kbhn kbkb kbkk kbko kbnd kbnh kbnn kbno kbnu kbob kboc kbod kbok kbon kboo kbub kbuc kbud kbuk kbun kbuu kcbc kcbd kcbk kcbu kccb kccc kccd kcck kccu kcdc kcdd kcdu kchh kchk kchn kcho kchu kckc kckk kckn kcko kcnb kcnd kcnh kcno kcob kcoh kcon kcou kcub kcuh kcuk kdbb kdbn kdcc kdcd kdco kddb kddc kddd kddk kdhn kdkb kdkd kdkk kdkn kdko kdnd kdnk kdnn kdno kdoc kdok kdub kduc kdun khbc khbd khcb khcc khch khck khdc khdk khdn khhk khho khkk khkn khnc khnd khnk khnu khob khoc khok khon khou khub khud khuk khun kkbb kkbd kkbn kkbo kkcb kkcd kkch kkck kkcn kkco kkdc kkdd kkdo kkhb kkhh kkhk kkkk kknb kknd kknn kkno kknu kkob kkoh kkon kkoo kkuu knbb knbc knbn knbu kncb knch knck kncn knco kncu kndb kndc kndd kndh kndk kndn kndo kndu knhc knhk knkk knnb knnd knnk knob knoc knod knok knon knou knub knud knuk kobb kobc kobk kobn kobo kobu kocb kocd koch kock kocn kodk kodo kodu kohd kohh kohn koho kohu kokb kokc kokh kokk kokn koko koku konc kond konk kono koob kooc kook koon kooo koou koub kouu kubb kubc kubd kubo kubu kucb kucc kucd kuch kuco kudd kudo kudu kuhn kuhu kukh kukk kukn kuku kunc kund kunk kuno kunu kuok kuon kuoo kuub kuuk kuuu nbbc