-ic b-u bbb bbc bbe bbi bbk bbl bbs bbu bcb bcc bce bci bck bcl bcs bcu be- beb bec bee bei bek bel bes beu bi- bib bic bie bii bik bil bis biu bkb bkc bke bkk bkl bks blb blc ble bli blk bll bls blu bsb bsc bse bsi bsk bsl bss bsu bub buc bue bui buk bul bus buu c-- cbb cbc cbe cbi cbk cbl cbs cbu ccb ccc cce cci cck ccl ccs ccu ce- ceb cec cee cei cek cel ces ceu ci- cib cic cie cii cik cil cis ciu ckb ckc cki cks cl- clb clc cle cli clk cll cls clu csb csc cse csi csk csl css csu cub cuc cue cui cuk cul cus cuu ebb ebc ebe ebi ebk ebl ebs ebu ec- ecb ecc ece eci eck ecl ecs ecu eeb eec eee eek eel ees eib eic eie eii eik eil eis eiu ekb ekc eke eki ekl eks eku elb elc ele eli elk ell els elu es- esb esc ese esi esk esl ess esu eu- eub euc eue eui eul eus ibb ibc ibe ibi ibk ibl ibs ibu icb icc ice ici ick icl ics icu ie- iec iee iei iek iel ies iib iic iie iii iil iis iiu ikb ikc ike iki ikk ikl iks iku il- ilb ilc ile ili ilk ill ils ilu is- isb isc ise isi isk isl iss isu iu- iub iuc iue iui ius kbb kbc kbe kbi kbk kbl kbs kbu kcb kcc kce kci kck kcl kcs kcu ke- keb kec kee kei kek kel kes kib kic kie kii kik kil kis kiu kkb kkc kke kki kkk kkl kks kku kl- klb klc kli kls klu ksb ksc kse ksi ksk ksl kss ksu kub kuc kue kui kuk kul kus kuu lbb lbc lbe lbi lbk lbl lbs lbu lcb lcc lce lci lck lcl lcs lcu leb lec lee lei lek lel les leu lib lic lie lii lik lil lis liu lkb lkl lks llb llc lle lli llk lll lls llu lsb lsc lse lsi lsk lsl lss lsu lub luc lue lui luk lul lus luu sbb sbc sbe sbi sbk sbl sbs sbu scb scc sce sci sck scl scs scu se- seb sec see sei sek sel ses seu sib sic sie sii sik sil sis siu sk- skb skc ske ski skk skl sks sku slb slc sle sli slk sll sls slu ss- ssb ssc sse ssi ssk ssl sss ssu sub suc sue sui suk sul sus suu ubb ubc ube ubi ubk ubl ubs ubu ucb ucc uce uci uck ucl ucs ucu ueb uec uee uei uel ues uib uic uie uii uil uis uiu ukb ukc uke uki ukk ukl uku ulb ulc ule uli ulk ull uls ulu usb usc use usi usk usl uss usu uuc uue uus uuu

bbbb bbbs bbci bbeb bblb bbls bcbc bcbs bccc bcci bccl bccs bcec bces bcie bcis bcsc bcsl bcss bcuc bebb bebe bebi beci beck becs becu beeb beek beel bees beic beik beil beis beke beki beks bele beli belk bell bels belu bes- bese besk bess beuk bibb bibe bibi bibl bibs bicc bice bici bick bics bieb biel bies bieu biis bike biku bile bili bilk bill bils bilu bis- bisc bise bisk bisl biss bisu blcu bleb blee blei blek bles bleu blic blik blis blkb blls blss blub blue blus bsci bscs bseb bsec bsee bses bsic bslc bssc bsse bubb bube bubi bubs bubu bucc buce buci buck bucs bucu buel bueu buic buie buik buis buiu buke buki bukk buku bulb bule buli bulk bull buls bulu busc buse busi busk buss busu buus cbbc cbbs cbcc cbce cbcl cbcs cbcu cbec cbee cbkl cblb cblc cbsc cbse cbsi cbus ccbc cccb cccc ccci cccl cccs cccu ccee ccel ccic ccii ccil ccis cclc ccli ccls ccsi ccsl ccss ccuc ccus cebs cebu cec- cece ceci cecs ceeb ceec ceel cees ceil ceke cel- celc cele celi cell cels cesc cese cesi cess ceui cibc cibe cibi cicc cici cics cicu ciee ciel cies ciii ciis cili cilk cill cils cis- cisc cise cisk cisl ciss ciuc cius ckbc ckbe ckbi ckck ckcl ckcs cksb cksl clec clee clei clek cles cleu clib clic clii clik clis clsc club clue cscb cscc csce csci cscl cscs csec csee csib csik csis csks cslu csse csus cub- cubb cube cubi cubs cucc cuce cuci cuck cuek cues cui- cuil cuis cuk- cuke culb culc cule culk cull culs cusb cusk cuss cusu e-cl ebbc ebbs ebcc ebel ebes ebic ebis ebli ebul ebus ecbc ecbe eccb eccc ecce ecci eccl eces ecib ecil ecis ecks ecsc ecse ecss ecsu ecus eecs eeee eees eeke eeks eele eels eese eesi eesk eick eics eiec eiei eies eike eiki eiks eile eise eisk eiss ekeb ekek ekes ekis ekki eksi el-b elbe elbi elbu elcb elce elec elee elek eles elic elie elik elil elis elke elki elks elle elli ells ellu else elsu elue elui elul elus esbs escb esce esci escs escu esee esek esel eses esie esik esil esis eske esks esku esli esse essi essl essu esui esus eubc eubi eule euse i-be ibcs ibec ibes ibie ibis ible ibss ibus icbc icbs iccb iccc icci iccl iccs iccu icec icee icel ices icis icke icks icle icll icsb icsc icse icsi icss icub icue icus iecc ieie iele iels iesc iesi iesu iies iiie iiii iiis iisc iisi iisu iiuc ikee ikes ikki iksu ikue ilbc ilce ile- ilec ilek iles ilic ilie ilis ilke ilki ilks ilku ill- ille illi ills ilse ilus isbe isbl iscc isci iscs iscu iseb isec isee isel ises isic isie isil isis isku isle isls issc isse issi isss issu isus iucc iuce iuel iuiu iuse