b-u bbb bbc bbe bbk bbl bbs bbu bcb bcc bce bck bcl bcs bcu be- beb bec bee bek bel bes beu bkb bkc bke bkk bkl bks blb blc ble blk bll bls blu bsb bsc bse bsk bsl bss bsu bub buc bue buk bul bus buu c-- cbb cbc cbe cbk cbl cbs cbu ccb ccc cce cck ccl ccs ccu ce- ceb cec cee cek cel ces ceu ckb ckc cks cl- clb clc cle clk cll cls clu csb csc cse csk csl css csu cub cuc cue cuk cul cus cuu ebb ebc ebe ebk ebl ebs ebu ec- ecb ecc ece eck ecl ecs ecu eeb eec eee eek eel ees ekb ekc eke ekl eks eku elb elc ele elk ell els elu es- esb esc ese esk esl ess esu eu- eub euc eue eul eus kbb kbc kbe kbk kbl kbs kbu kcb kcc kce kck kcl kcs kcu ke- keb kec kee kek kel kes kkb kkc kke kkk kkl kks kku kl- klb klc kls klu ksb ksc kse ksk ksl kss ksu kub kuc kue kuk kul kus kuu lbb lbc lbe lbk lbl lbs lbu lcb lcc lce lck lcl lcs lcu leb lec lee lek lel les leu lkb lkl lks llb llc lle llk lll lls llu lsb lsc lse lsk lsl lss lsu lub luc lue luk lul lus luu sbb sbc sbe sbk sbl sbs sbu scb scc sce sck scl scs scu se- seb sec see sek sel ses seu sk- skb skc ske skk skl sks sku slb slc sle slk sll sls slu ss- ssb ssc sse ssk ssl sss ssu sub suc sue suk sul sus suu ubb ubc ube ubk ubl ubs ubu ucb ucc uce uck ucl ucs ucu ueb uec uee uel ues ukb ukc uke ukk ukl uku ulb ulc ule ulk ull uls ulu usb usc use usk usl uss usu uuc uue uus uuu

bbbb bbbs bbeb bblb bbls bcbc bcbs bccc bccl bccs bcec bces bcsc bcsl bcss bcuc bebb bebe beck becs becu beeb beek beel bees beke beks bele belk bell bels belu bes- bese besk bess beuk blcu bleb blee blek bles bleu blkb blls blss blub blue blus bscs bseb bsec bsee bses bslc bssc bsse bubb bube bubs bubu bucc buce buck bucs bucu buel bueu buke bukk buku bulb bule bulk bull buls bulu busc buse busk buss busu buus cbbc cbbs cbcc cbce cbcl cbcs cbcu cbec cbee cbkl cblb cblc cbsc cbse cbus ccbc cccb cccc cccl cccs cccu ccee ccel cclc ccls ccsl ccss ccuc ccus cebs cebu cec- cece cecs ceeb ceec ceel cees ceke cel- celc cele cell cels cesc cese cess ckbc ckbe ckck ckcl ckcs cksb cksl clec clee clek cles cleu clsc club clue cscb cscc csce cscl cscs csec csee csks cslu csse csus cub- cubb cube cubs cucc cuce cuck cuek cues cuk- cuke culb culc cule culk cull culs cusb cusk cuss cusu e-cl ebbc ebbs ebcc ebel ebes ebul ebus ecbc ecbe eccb eccc ecce eccl eces ecks ecsc ecse ecss ecsu ecus eecs eeee eees eeke eeks eele eels eese eesk ekeb ekek ekes el-b elbe elbu elcb elce elec elee elek eles elke elks elle ells ellu else elsu elue elul elus esbs escb esce escs escu esee esek esel eses eske esks esku esse essl essu esus eubc eule euse kbbb kbbc kbbe kbbk kbbl kbbs kbbu kbcb kbce kbck kbcl kbcs kbcu kbeb kbec kbee kbek kbel kbes kbkb kbkk kbkl kblb kble kbll kbls kblu kbsb kbsk kbss kbsu kbub kbuc kbue kbuk kbul kbus kbuu kcbc kcbk kcbl kcbs kcbu kccb kccc kcck kccl kccu kceb kcec kcee kcel kceu kckc kckk kckl kclc kcle kclk kcll kcls kclu kcsb kcsc kcse kcss kcsu kcub kcue kcuk kcul kebb kebc kebe kebu keck keek keel kees kekb kekc keke kekl keks keku kele kelk kell kelu kesb kesc kesk kess keul keus kkbb kkbe kkbl kkbs kkcb kkck kkcl kkcs kkkk kklb kklc kkll kkls kkse kkss kksu kkus kkuu klbb klbc klbe klbl klbs klbu klcb klcc klce klck klcl klcs kleb klec klee klek kles klkc klkk klkl klks kllb kllc klle kllk klls klsc klse klsu klub klue kluk kluu ksbc ksbl ksbs kscb ksce ksck kscl kscs kscu ksec ksee ksek ksel kskb kske kskk ksks ksku kslb kslc ksle kslk ksll kslu ksse kssl ksss kssu ksub ksue ksuu kubb kubc kube kubs kubu kucb kucc kuce kuek kuel kues kueu kuke kukk kukl kuks kuku kulb kule kull kulu kusb kusc kusu kuub kuuk kuul kuuu lbcc lbsc lcbc lccc lcce lccs lces lcls lcsc le-u lebu lece leck leek leel lees leke lekk leks lele lell lelu lese lesk less lesu leuc leuk llbs llcc llcs lles lleu llks lllc llll lsbu lscb lscs lses lube lubs luce luck lucs lues luke lule lull lulu luse lusk luss luuk sbbs sbcc sbcs sbse sbus sccc scce sccl sccs scec scee scel sck- sckl scl- sclc sclk scls scsc scsl scsu scub scul se-c se-e se-k se-s se-u sebe sebs sec- secc sece seck secs secu seeb seec seek seel sees seeu seke sekk seku selb sele selk sell sels selu sesc sese sess seul skee skel skes skss skue skul slcc slcu sleb slee sles slsc slsu slub sluc slue sscc ssce sscs ssec ssee sses sslc ssle sssb sssc ssss sub- subb subl subs suc- succ suck sucs suee suel sues sueu suke suks suku sul- sulc sule sulk sull sulu sus- suse susk suss susu suus ubbe ubek uble ubls ucbc ucel uces ucsb ucsc ucsu uele uell uess ukcc ukek ukes ukeu uksc ulbc ulcc uleb ulee ulek ules ulle uluk ulul ulus us-k usbc usbe usbl usbs uscc usce uscs usee usel uses uske usle uslu ussb ussc usse usss ussu usul usus uulu uuuu