b-u bbb bbc bbd bbe bbk bbl bbn bbu bcb bcc bcd bce bck bcl bcn bcu bdb bdc bdd bde bdk bdl bdu be- beb bec bed bee bek bel ben beu bkb bkc bke bkk bkl bkn blb blc bld ble blk bll bln blu bnb bnc bnd bne bnk bnl bnn bnu bub buc bud bue buk bul bun buu c-- cbb cbc cbd cbe cbk cbl cbn cbu ccb ccc ccd cce cck ccl ccn ccu cdb cdc cdd cde cdk cdl cdn cdu ce- ceb cec ced cee cek cel cen ceu ckb ckc ckd cl- clb clc cld cle clk cll cln clu cn- cnb cnc cnd cne cnl cnn cnu cub cuc cud cue cuk cul cun cuu dbb dbc dbd dbe dbk dbl dbn dbu dcb dcc dcd dce dck dcl dcn dcu ddb ddc ddd dde ddk ddl ddn ddu de- deb dec ded dee dek del den deu dkb dkc dke dkk dkl dku dl- dlb dlc dld dle dlk dll dlu dnb dnc dnd dne dnk dnl dnn dub duc dud due duk dul dun ebb ebc ebd ebe ebk ebl ebn ebu ec- ecb ecc ecd ece eck ecl ecn ecu ed- edb edc edd ede edk edl edn edu eeb eec eed eee eek eel een ekb ekc ekd eke ekl eku elb elc eld ele elk ell eln elu en- enb enc end ene enk enl enn enu eu- eub euc eud eue eul eun kbb kbc kbd kbe kbk kbl kbn kbu kcb kcc kcd kce kck kcl kcn kcu kdb kdc kde kdk kdl kdu ke- keb kec ked kee kek kel ken kkb kkc kke kkk kkl kkn kku kl- klb klc kld klu kn- knc knd kne knk knl knn knu kub kuc kud kue kuk kul kun kuu lbb lbc lbd lbe lbk lbl lbu lcb lcc lcd lce lck lcl lcn lcu ldb ldc ldd lde ldk ldl ldn ldu leb lec led lee lek lel len leu lkb lkl llb llc lld lle llk lll lln llu lnb lnc lnd lne lnk lnl lnn lnu lub luc lud lue luk lul lun luu nbb nbc nbd nbe nbk nbl nbn nbu ncb ncc ncd nce nck ncl ncn ncu ndb ndc ndd nde ndk ndl ndn ndu ne- neb nec ned nee nek nel nen neu nkc nke nkk nkn nku nlb nlc nld nle nlk nll nln nlu nnb nnc nne nnk nnl nnn nnu nub nuc nud nue nuk nul nun nuu ubb ubc ube ubk ubl ubn ubu ucb ucc ucd uce uck ucl ucn ucu udb udc udd ude udk udl udn udu ueb uec ued uee uel uen ukb ukc uke ukk ukl ukn uku ulb ulc uld ule ulk ull uln ulu un- unb unc und une unk unl unn unu uuc uue uun uuu

-ene bbbb bbdd bbeb bblb bcbc bccc bccl bcde bcec bcnu bcuc bdbc bddc bdle bebb bebe beck becu bede bedl bedu beeb beed beek beel been beke beld bele belk bell belu bend bene benk benn benu beuk blcu bldc bleb bled blee blek bleu blkb blkd blub blud blue bubb bube bubu bucc buce buck bucu budb budd bude budl budu buel buen bueu buke bukk buku bulb buld bule bulk bull bulu bunb bund bune bunk bunn bunu c-cd cbbc cbcc cbce cbcl cbcn cbcu cbdb cbdc cbdn cbec cbee cbkl cbkn cblb cblc cbln cbnd ccbc ccbn cccb cccc cccl cccu ccdc ccdn cced ccee ccel cclc ccnb ccnc ccne ccnu ccuc cd-e cddb cddl cdec cdnb cdnc cebu cec- cece cedd cede cedu ceeb ceec ceel ceke cel- celc cele cell cen- cend cene ckbc ckbe ckck ckcl ckdu cken ckln cknb cknc clcd cldc clec cled clee clek cleu club clud clue clun cnbc cnbl cndd cnel cub- cubb cube cucc cuce cuck cucn cude cued cuek cuk- cuke culb culc culd cule culk cull cund cune dbcc dbnl dcbc dccb dccc dccl dccu dcdb dddd ddlc ddub debe debu dec- decc decd dece deck decl dedd dede dedu deeb deed deek deel deen dek- deke deld dele delk dell dene denk denn denu deue deuk deul dkdc dlbd dnce dnuk dub- dubb dubc dube dubu duce duck dudd dude dudu duel duke duku dulc dule dull dulu dunc dune dunk dunn duul e-cl ebbc ebcc ebed ebel eben ebul ecbc ecbe eccb eccc ecce eccl ecdc ecdl eced ecne eddc edde ede- edel eden edle ednl educ edun eede eedu eeee eeke eele eend ekeb eked ekek eken ekne el-b elbe elbu elcb elce elde elec eled elee elek elen elke elle ellu elne elue elul enb- enbn ence encl end- ende endu ened enee enel enke ennc enne ennu enue eubc eucd eude eule kbbb kbbc kbbd kbbe kbbk kbbl kbbu kbcb kbce kbck kbcl kbcu kbdb kbde kbdl kbdn kbeb kbec kbed kbee kbek kbel kben kbkb kbkk kbkl kblb kbld kble kbll kblu kbnd kbnl kbnn kbnu kbub kbuc kbud kbue kbuk kbul kbun kbuu kcbc kcbd kcbk kcbl kcbu kccb kccc kccd kcck kccl kccu kcdc kcdd kcdu kceb kcec kced kcee kcel kceu kckc kckk kckl kckn kclc kcle kclk kcll kcln kclu kcnb kcnd kcub kcue kcuk kcul kdbb kdbl kdbn kdcc kdcd kdce kddb kddc kddd kddk kddl kdeb kdec kdel kden kdkb kdkd kdkk kdkn kdlb kdlc kdld kdll kdnd kdne kdnk kdnn kdub kduc kdun kebb kebc kebe kebn kebu keck kedb kedc kedd kede keed keek keel keen kekb kekc keke kekl keku keld kele kelk kell keln kelu ken- kend kene kenk kenl kenn kenu keul keun kkbb kkbd kkbe kkbl kkbn kkcb kkcd kkck kkcl kkcn kkdc kkdd kkdl kked kken kkkk kklb kklc kkld kkll kkln kknb kknd kkne kknn kknu kkuu klbb klbc klbd klbe klbl klbn klbu klcb klcc klcd klce klck klcl klcn kldc kldd klde kldn kleb klec kled klee klek klen klkc klkk