b-u bbb bbc bbd bbe bbk bbo bbt bbu bcb bcc bcd bce bck bco bct bcu bdb bdc bdd bde bdk bdo bdt bdu be- beb bec bed bee bek beo bet beu bkb bkc bke bkk bko bkt bob boc bod boe bok boo bot bou btb btc btd bte btk bto btt btu bub buc bud bue buk buo but buu c-- cbb cbc cbd cbe cbk cbo cbt cbu ccb ccc ccd cce cck cco cct ccu cdb cdc cdd cde cdk cdo cdt cdu ce- ceb cec ced cee cek ceo cet ceu ckb ckc ckd cko ckt co- cob coc cod coe cok coo cot cou ctb ctc ctd cte ctk cto ctt ctu cub cuc cud cue cuk cuo cut cuu dbb dbc dbd dbe dbk dbo dbt dbu dcb dcc dcd dce dck dco dct dcu ddb ddc ddd dde ddk ddo ddt ddu de- deb dec ded dee dek deo det deu dkb dkc dke dkk dko dkt dku dob doc dod doe dok doo dot dou dtb dtc dtd dte dtk dto dtt dtu dub duc dud due duk duo dut ebb ebc ebd ebe ebk ebo ebt ebu ec- ecb ecc ecd ece eck eco ect ecu ed- edb edc edd ede edk edo edt edu eeb eec eed eee eek eeo eet ekb ekc ekd eke eko ekt eku eo- eob eoc eod eoe eok eoo eot eou etb etc etd ete etk eto ett etu eu- eub euc eud eue eut k-t kbb kbc kbd kbe kbk kbo kbu kcb kcc kcd kce kck kct kcu kdb kdc kde kdk kdo kdt kdu ke- keb kec ked kee kek keo ket kkb kkc kke kkk kkt kku kob koc kod koe kok koo kot kou ktb ktc kte ktk kto ktt ktu kub kuc kud kue kuk kut kuu ob- obb obc obd obe obk obo obt obu oc- ocb occ ocd ock oco oct ocu odb odc odd ode odo odt odu oeb oec oed oee oeo oet okb okc okd oke okk oko oku oo- oob ooc ood ook ooo oot ot- otb otc otd ote otk oto ott otu ou- ouc oud oue ouk ouo out tbb tbc tbd tbe tbk tbo tbt tbu tcb tcc tcd tce tck tco tct tcu tdb tdc tdd tde tdk tdo tdt tdu te- teb tec ted tee tek teo tet teu tkb tkc tke tkk tko tkt to- tob toc tod toe tok too tot tou ttb ttc ttd tte ttk tto ttt ttu tub tuc tud tue tuk tuo tut tuu ubb ubc ube ubk ubo ubt ubu ucb ucc ucd uce uck uco uct ucu udb udc udd ude udk udo udt udu ueb uec ued uee uet ukb ukc uke ukk uku uob uoc uod uoe uok uoo uot utb utc utd ute utk uto utt utu uuc uue uut uuu

bbbb bbdd bbdo bbeb bbet bcbc bccc bcde bcec bcet bctc bcuc bdbc bddc bebb bebe bebo beck becu bede bedo bedu beeb beed beek beet beke beko beo- beod beok beot betc bete beto bett betu beuk bobb bobe bobo bobu boce bock boco bocu bodb bode bodo bodu boec boee boeo boet boke boko boku boob booc bood booe book boot botb botd bote boto bott boud boue bouk bout btcc btdt btec btek btob bttb bubb bube bubo bubu bucc buce buck buco bucu budb budd bude budo budu bueu buke bukk buko buku but- bute buto butt c-bo c-cd cbbc cbcc cbce cbct cbcu cbdb cbdc cbdo cbec cbee cbet cbko cbot cbtc ccbc cccb cccc cccu ccdc cced ccee ccob ccoc ccod cctb cctc cctt ccuc ccut cd-e cddb cdec cdot cebu cec- cece ceco cect cedd cede cedo cedt cedu ceeb ceec ceke ceou cet- cete ceto ckbc ckbe ckck ckco ckdo ckdu ckob ckoc ckoo ckot cktb cobb cobe cobo cobu coce cock coco coct cocu codd code coed cok- coke coko coob cood cook coot cotb cotc cote coto cott cotu coub coud coue couk cout ctec ctot cub- cubb cube cucc cuce cuck cude cued cuek cuk- cuke cut- cutc cute cuto cutt d-bo dbcc dbtt dcbc dccb dccc dcct dccu dcdb dctc dddd ddoc ddot ddub debe debt debu dec- decc decd dece deck deco dect dedd dede dedo dedu deeb deed deek deet dek- deke dete detk deto deue deuk deut dkdc dobb dobe dobu doce dock doco doct docu dod- dodd dode dodo doek doke doko doob dood dook doot dotd dote dotk doto dott doub douc doud doue douk dout dtcc dted dtek dtot dub- dubb dubc dube dubu duce duck duco duct dudd dude dudo dudu duet duke dukt duku duo- dute duut ebbc ebbo ebcc ebed eboe eboo ecbc ecbe eccb eccc ecce ecco ecct ecdc eced ecko eco- ecod ecot ecou ect- ectc ecto eddc edde eddo ede- edoc edod edou educ eede eedu eeee eeke eeoc eetc eete eetu ekco ekeb eked ekek eket eocd eode eotc eotd eoto etbc etcc etco etec etee etoe etok ette etto ettu eubc eucd eude kbbb kbbc kbbd kbbe kbbk kbbo kbbt kbbu kbcb kbce kbck kbco kbct kbcu kbdb kbde kbdo kbeb kbec kbed kbee kbek kbeo kbet kbkb kbkk kbko kbob kboc kbod kboe kbok kboo kbot kbtb kbtc kbte kbtk kbto kbtt kbub kbuc kbud kbue kbuk kbut kbuu kcbc kcbd kcbk kcbu kccb kccc kccd kcck kcct kccu kcdc kcdd kcdu kceb kcec kced kcee kceo kcet kceu kckc kckk kcko kcob kcoe kcot kcou kctb kctc kcte kcto kctu kcub kcue kcuk kdbb kdcc kdcd kdce kdco kddb kddc kddd kddk kdeb kdec kdet kdkb kdkd kdkk kdko kdkt kdoc kdoe kdok kdot kdtd kdub kduc kdut kebb kebc kebe kebt kebu keck keco kedb kedc kedd kede kedo kedt keed keek keet kekb kekc keke keko keku keok ket- ketc ketd kete ketk keto kett ketu kkbb kkbd kkbe kkbo kkbt kkcb