-er -ic b-u bbb bbc bbe bbg bbi bbk bbl bbn bbr bbs bbt bbu bcb bcc bce bcg bci bck bcl bcn bcr bcs bct bcu be- beb bec bee beg bei bek bel ben ber bes bet beu bgb bgc bge bgg bgi bgk bgl bgn bgr bgs bgt bgu bi- bib bic bie big bii bik bil bin bir bis bit biu bkb bkc bke bkg bkk bkl bkn bkr bks bkt blb blc ble blg bli blk bll bln blr bls blt blu bnb bnc bne bng bni bnk bnl bnn bnr bns bnt bnu brb bre brg bri brk brl brn brr brs brt bru bsb bsc bse bsg bsi bsk bsl bsn bsr bss bst bsu btb btc bte btg bti btk btl btn btr bts btt btu bub buc bue bug bui buk bul bun bur bus but buu c-- cbb cbc cbe cbg cbi cbk cbl cbn cbr cbs cbt cbu ccb ccc cce ccg cci cck ccl ccn ccr ccs cct ccu ce- ceb cec cee ceg cei cek cel cen cer ces cet ceu cgb cgc cge cgg cgi cgl cgn cgr cgs cgt cgu ci- cib cic cie cig cii cik cil cin cir cis cit ciu ckb ckc cki cks ckt cl- clb clc cle clg cli clk cll cln clr cls clt clu cn- cnb cnc cne cng cni cnl cnn cnr cns cnt cnu crb crc cre crg cri crk crl crn crr crs crt cru csb csc cse csg csi csk csl csn csr css cst csu ctb ctc cte ctg cti ctk ctl ctn ctr cts ctt ctu cub cuc cue cug cui cuk cul cun cur cus cut cuu ebb ebc ebe ebg ebi ebk ebl ebn ebr ebs ebt ebu ec- ecb ecc ece ecg eci eck ecl ecn ecr ecs ect ecu eeb eec eee eeg eek eel een eer ees eet egb egc ege egg egi egl egn egr egs egt egu eib eic eie eig eii eik eil ein eir eis eit eiu ekb ekc eke ekg eki ekl ekr eks ekt eku elb elc ele elg eli elk ell eln elr els elt elu en- enb enc ene eng eni enk enl enn enr ens ent enu erb erc ere erg eri erk erl ern err ers ert eru es- esb esc ese esg esi esk esl esn esr ess est esu etb etc ete etg eti etk etl etn etr ets ett etu eu- eub euc eue eug eui eul eun eur eus eut gbc gbe gbg gbi gbk gbl gbn gbr gbs gbt gbu gcb gcc gce gcg gci gck gcl gcn gcr gcs gct gcu ge- geb gec gee geg gei gek gel gen ger ges get geu ggb ggc ggg ggi ggn ggr ggs ggt ggu gib gic gie gig gii gik gil gin gir gis git giu gkb gkn gks gkt glb glc gle glg gli glk gll gln glr gls glt glu gnb gnc gne gni gnl gnn gnr gns gnt gnu grb grc gre grg gri grk grl grn grr grs grt gru gsb gsc gse gsg gsi gsk gsl gsn gsr gss gst gsu gtb gtc gte gtg gti gtk gtl gtn gtr gts gtt gtu gu- gub guc gue gug gui guk gul gun gur gus gut guu ibb ibc ibe ibg ibi ibk ibl ibn ibr ibs ibt ibu icb icc ice icg ici ick icl icn icr ics ict icu ie- iec iee ieg iei iek iel ien ier ies iet igb igc ige igg igi igk igl ign igr igs igt igu iib iic iie iii iil iin iir iis iit iiu ikb ikc ike iki ikk ikl ikr iks ikt iku il- ilb ilc ile ilg ili ilk ill iln ilr ils ilt ilu in- inb inc ine ing ini ink inl inn inr ins int inu ir- irb irc ire irg iri irk irl irn irr irs irt iru is- isb isc ise isg isi isk isl isn isr iss ist isu itb itc ite itg iti itk itl itn its itt itu iu- iub iuc iue iug iui iur ius iut k-t kbb kbc kbe kbi kbk kbl kbn kbr kbs kbu kcb kcc kce kcg kci kck kcl kcn kcr kcs kct kcu ke- keb kec kee keg kei kek kel ken ker kes ket kgb kgc kgi kgl kgs kgu kib kic kie kig kii kik kil kin kir kis kit kiu kkb kkc kke kki kkk kkl kkn kkr kks kkt kku kl- klb klc klg kli klr kls klt klu kn- knc kne kng kni knk knl knn knr knt knu krc krg kri krk krl krn krr krs krt kru ksb ksc kse ksg ksi ksk ksl ksn ksr kss kst ksu ktb ktc kte ktg ktk ktl ktn ktr kts ktt ktu kub kuc kue kug kui kuk kul kun kur kus kut kuu lbb lbc lbe lbg lbi lbk lbl lbr lbs lbt lbu lcb lcc lce lcg lci lck lcl lcn lcr lcs lct lcu leb lec lee leg lei lek lel len ler les let leu lgb lgc lge lgg lgi lgk lgl lgn lgr lgs lgt lgu lib lic lie lig lii lik lil lin lir lis lit liu lkb lkg lkl lkr lks lkt llb llc lle llg lli llk lll lln llr lls llt llu lnb lnc lne lng lni lnk lnl lnn lnr lns lnt lnu lrb lrc lrg lri lrk lrn lrr lrs lrt lru lsb lsc lse lsg lsi lsk lsl lsn lsr lss lst lsu ltb ltc lte ltg lti ltk ltl ltr lts ltt ltu lub luc lue lug lui luk lul lun lur lus lut luu n-i nbb nbc nbe nbg nbi nbk nbl nbn nbr nbs nbt nbu ncb ncc nce ncg nci nck ncl ncn ncr ncs nct ncu ne- neb nec nee neg nei nek nel nen ner nes net neu ngb