-er -ic b-u bbb bbc bbe bbg bbi bbl bbn bbr bbs bbu bcb bcc bce bcg bci bcl bcn bcr bcs bcu be- beb bec bee beg bei bel ben ber bes beu bgb bgc bge bgg bgi bgl bgn bgr bgs bgu bi- bib bic bie big bii bil bin bir bis biu blb blc ble blg bli bll bln blr bls blu bnb bnc bne bng bni bnl bnn bnr bns bnu brb bre brg bri brl brn brr brs bru bsb bsc bse bsg bsi bsl bsn bsr bss bsu bub buc bue bug bui bul bun bur bus buu c-- cbb cbc cbe cbg cbi cbl cbn cbr cbs cbu ccb ccc cce ccg cci ccl ccn ccr ccs ccu ce- ceb cec cee ceg cei cel cen cer ces ceu cgb cgc cge cgg cgi cgl cgn cgr cgs cgu ci- cib cic cie cig cii cil cin cir cis ciu cl- clb clc cle clg cli cll cln clr cls clu cn- cnb cnc cne cng cni cnl cnn cnr cns cnu crb crc cre crg cri crl crn crr crs cru csb csc cse csg csi csl csn csr css csu cub cuc cue cug cui cul cun cur cus cuu ebb ebc ebe ebg ebi ebl ebn ebr ebs ebu ec- ecb ecc ece ecg eci ecl ecn ecr ecs ecu eeb eec eee eeg eel een eer ees egb egc ege egg egi egl egn egr egs egu eib eic eie eig eii eil ein eir eis eiu elb elc ele elg eli ell eln elr els elu en- enb enc ene eng eni enl enn enr ens enu erb erc ere erg eri erl ern err ers eru es- esb esc ese esg esi esl esn esr ess esu eu- eub euc eue eug eui eul eun eur eus gbc gbe gbg gbi gbl gbn gbr gbs gbu gcb gcc gce gcg gci gcl gcn gcr gcs gcu ge- geb gec gee geg gei gel gen ger ges geu ggb ggc ggg ggi ggn ggr ggs ggu gib gic gie gig gii gil gin gir gis giu glb glc gle glg gli gll gln glr gls glu gnb gnc gne gni gnl gnn gnr gns gnu grb grc gre grg gri grl grn grr grs gru gsb gsc gse gsg gsi gsl gsn gsr gss gsu gu- gub guc gue gug gui gul gun gur gus guu ibb ibc ibe ibg ibi ibl ibn ibr ibs ibu icb icc ice icg ici icl icn icr ics icu ie- iec iee ieg iei iel ien ier ies igb igc ige igg igi igl ign igr igs igu iib iic iie iii iil iin iir iis iiu il- ilb ilc ile ilg ili ill iln ilr ils ilu in- inb inc ine ing ini inl inn inr ins inu ir- irb irc ire irg iri irl irn irr irs iru is- isb isc ise isg isi isl isn isr iss isu iu- iub iuc iue iug iui iur ius lbb lbc lbe lbg lbi lbl lbr lbs lbu lcb lcc lce lcg lci lcl lcn lcr lcs lcu leb lec lee leg lei lel len ler les leu lgb lgc lge lgg lgi lgl lgn lgr lgs lgu lib lic lie lig lii lil lin lir lis liu llb llc lle llg lli lll lln llr lls llu lnb lnc lne lng lni lnl lnn lnr lns lnu lrb lrc lrg lri lrn lrr lrs lru lsb lsc lse lsg lsi lsl lsn lsr lss lsu lub luc lue lug lui lul lun lur lus luu n-i nbb nbc nbe nbg nbi nbl nbn nbr nbs nbu ncb ncc nce ncg nci ncl ncn ncr ncs ncu ne- neb nec nee neg nei nel nen ner nes neu ngb ngc nge ngg ngi ngl ngn ngs ngu nib nic nie nig nii nil nin nir nis niu nlb nlc nle nlg nli nll nln nlr nls nlu nnb nnc nne nng nni nnl nnn nns nnu nrb nrc nre nrg nri nrl nrn nrr nrs nru nsb nsc nse nsg nsi nsl nsn nsr nss nsu nub nuc nue nug nui nul nun nur nus nuu rbb rbc rbe rbg rbi rbl rbn rbr rbs rbu rcb rcc rce rcg rci rcl rcn rcr rcs rcu re- reb rec ree reg rei rel ren rer res reu rgb rgc rge rgg rgi rgn rgr rgs rib ric rie rig rii ril rin rir ris rlc rle rlg rli rll rln rlr rls rlu rnb rnc rng rni rnn rnr rns rnu rrb rrc rrg rri rrl rrn rrr rrs rru rsb rsc rse rsg rsi rsl rsn rsr rss rsu rub ruc rue rug rui run rur rus ruu sbb sbc sbe sbg sbi sbl sbn sbr sbs sbu scb scc sce scg sci scl scn scr scs scu se- seb sec see seg sei sel sen ser ses seu sgb sgc sge sgg sgi sgl sgn sgr sgs sgu sib sic sie sig sii sil sin sir sis siu slb slc sle slg sli sll sln slr sls slu snb snc sne sng sni snl snn snr sns snu sr- srb src sre srg sri srl srn srr srs ss- ssb ssc sse ssg ssi ssl ssn ssr sss ssu sub suc sue sug sui sul sun sur sus suu ubb ubc ube ubg ubi ubl ubn ubr ubs ubu ucb ucc uce ucg uci ucl ucn ucr ucs ucu ueb uec uee ueg uei uel uen uer ues ugb ugc uge ugg ugi ugl ugn ugr ugs ugu uib uic uie uig uii uil uin uir uis uiu ulb ulc ule ulg uli ull uln ulr uls ulu un- unb unc une ung uni unl unn unr uns unu ur- urb urc ure urg uri url urn urr urs uru usb usc use usg usi usl usn usr uss usu uuc uue uug uun uur uus uuu