-er -th b-u bbb bbc bbe bbg bbh bbl bbn bbr bbt bbu bcb bcc bce bcg bch bcl bcn bcr bct bcu be- beb bec bee beg beh bel ben ber bet beu bgb bgc bge bgg bgh bgl bgn bgr bgt bgu bhb bhc bhe bhg bhh bhl bhr bht bhu blb blc ble blg blh bll bln blr blt blu bnb bnc bne bng bnl bnn bnr bnt bnu brb bre brg brh brl brn brr brt bru btb btc bte btg bth btl btn btr btt btu bub buc bue bug buh bul bun bur but buu c-- cbb cbc cbe cbg cbh cbl cbn cbr cbt cbu ccb ccc cce ccg cch ccl ccn ccr cct ccu ce- ceb cec cee ceg ceh cel cen cer cet ceu cgb cgc cge cgg cgh cgl cgn cgr cgt cgu ch- chb chc che chg chh chl chn chr cht chu cl- clb clc cle clg clh cll cln clr clt clu cn- cnb cnc cne cng cnh cnl cnn cnr cnt cnu crb crc cre crg crh crl crn crr crt cru ctb ctc cte ctg cth ctl ctn ctr ctt ctu cub cuc cue cug cuh cul cun cur cut cuu ebb ebc ebe ebg ebh ebl ebn ebr ebt ebu ec- ecb ecc ece ecg ech ecl ecn ecr ect ecu eeb eec eee eeg eel een eer eet egb egc ege egg egh egl egn egr egt egu ehb ehc ehe ehg ehh ehl ehn ehr eht ehu elb elc ele elg elh ell eln elr elt elu en- enb enc ene eng enh enl enn enr ent enu erb erc ere erg erh erl ern err ert eru etb etc ete etg eth etl etn etr ett etu eu- eub euc eue eug eul eun eur eut gbc gbe gbg gbh gbl gbn gbr gbt gbu gcb gcc gce gcg gch gcl gcn gcr gct gcu ge- geb gec gee geg geh gel gen ger get geu ggb ggc ggg ggh ggn ggr ggt ggu ghb ghc ghe ghg ghh ghl ghn ghr ght glb glc gle glg glh gll gln glr glt glu gnb gnc gne gnl gnn gnr gnt gnu grb grc gre grg grh grl grn grr grt gru gtb gtc gte gtg gth gtl gtn gtr gtt gtu gu- gub guc gue gug gul gun gur gut guu hbb hbc hbe hbg hbh hbl hbn hbr hbt hbu hcb hcc hce hcg hch hcl hcn hcr hct he- heb hec hee heg heh hel hen her het heu hgb hgc hge hgg hgh hgl hgn hgr hgt hgu hhb hhc hhe hhg hhh hhl hhn hhr hht hhu hlb hlc hle hlg hlh hll hln hlr hlt hlu hnb hnc hne hng hnh hnl hnn hnt hnu hr- hrb hrc hre hrg hrh hrl hrn hrr hrt hru htb htc hte htg hth htl htn htr htt hub huc hue hug huh hul hun hur hut huu lbb lbc lbe lbg lbh lbl lbr lbt lbu lcb lcc lce lcg lch lcl lcn lcr lct lcu leb lec lee leg leh lel len ler let leu lgb lgc lge lgg lgh lgl lgn lgr lgt lgu lhb lhc lhh lhr lht lhu llb llc lle llg lll lln llr llt llu lnb lnc lne lng lnh lnl lnn lnr lnt lnu lrb lrc lrg lrh lrn lrr lrt lru ltb ltc lte ltg lth ltl ltr ltt ltu lub luc lue lug luh lul lun lur lut luu nbb nbc nbe nbg nbl nbn nbr nbt nbu ncb ncc nce ncg nch ncl ncn ncr nct ncu ne- neb nec nee neg neh nel nen ner net neu ngb ngc nge ngg ngh ngl ngn ngt ngu nhb nhc nhe nhg nhh nhl nhn nhr nht nhu nlb nlc nle nlg nlh nll nln nlr nlt nlu nnb nnc nne nng nnh nnl nnn nnt nnu nrb nrc nre nrg nrl nrn nrr nrt nru ntb ntc nte ntg nth ntn ntr ntt ntu nub nuc nue nug nuh nul nun nur nut nuu rbb rbc rbe rbg rbh rbl rbn rbr rbt rbu rcb rcc rce rcg rch rcl rcn rcr rct rcu re- reb rec ree reg reh rel ren rer ret reu rgb rgc rge rgg rgh rgn rgr rgt rh- rhb rhc rhe rhg rhh rhl rhn rhr rht rhu rlc rle rlg rlh rll rln rlr rlt rlu rnb rnc rng rnh rnn rnr rnt rnu rrb rrc rrg rrh rrl rrn rrr rrt rru rtb rtc rte rtg rtl rtn rtr rtt rtu rub ruc rue rug ruh run rur rut ruu tbb tbc tbe tbg tbh tbl tbn tbr tbt tbu tcb tcc tce tcg tch tcl tcn tcr tct tcu te- teb tec tee teg teh tel ten ter tet teu tgb tgc tge tgg tgh tgl tgn tgr tgt tgu th- thb thc the thg thh thl thn thr tht thu tlc tle tlg tlh tll tln tlr tlt tlu tnb tnc tne tng tnh tnl tnn tnr tnt trb trc tre trg trh trl trn trr trt tru ttb ttc tte ttg tth ttl ttn ttr ttt ttu tub tuc tue tug tuh tul tun tur tut tuu ubb ubc ube ubg ubh ubl ubn ubr ubt ubu ucb ucc uce ucg uch ucl ucn ucr uct ucu ueb uec uee ueg ueh uel uen uer uet ugb ugc uge ugg ugh ugl ugn ugr ugt ugu uhb uhc uhe uhh uhl uhr uht uhu ulb ulc ule ulg ull uln ulr ult ulu un- unb unc une ung unh unl unn unr unt unu ur- urb urc ure urg url urn urr urt uru utb utc ute uth utl utn utr utt utu uuc uue uug uun uur uut uuu