-er -th bbb bbc bbe bbg bbh bbl bbn bbr bbt bcb bcc bce bcg bch bcl bcn bcr bct be- beb bec bee beg beh bel ben ber bet bgb bgc bge bgg bgh bgl bgn bgr bgt bhb bhc bhe bhg bhh bhl bhr bht blb blc ble blg blh bll bln blr blt bnb bnc bne bng bnl bnn bnr bnt brb bre brg brh brl brn brr brt btb btc bte btg bth btl btn btr btt c-- cbb cbc cbe cbg cbh cbl cbn cbr cbt ccb ccc cce ccg cch ccl ccn ccr cct ce- ceb cec cee ceg ceh cel cen cer cet cgb cgc cge cgg cgh cgl cgn cgr cgt ch- chb chc che chg chh chl chn chr cht cl- clb clc cle clg clh cll cln clr clt cn- cnb cnc cne cng cnh cnl cnn cnr cnt crb crc cre crg crh crl crn crr crt ctb ctc cte ctg cth ctl ctn ctr ctt ebb ebc ebe ebg ebh ebl ebn ebr ebt ec- ecb ecc ece ecg ech ecl ecn ecr ect eeb eec eee eeg eel een eer eet egb egc ege egg egh egl egn egr egt ehb ehc ehe ehg ehh ehl ehn ehr eht elb elc ele elg elh ell eln elr elt en- enb enc ene eng enh enl enn enr ent erb erc ere erg erh erl ern err ert etb etc ete etg eth etl etn etr ett gbc gbe gbg gbh gbl gbn gbr gbt gcb gcc gce gcg gch gcl gcn gcr gct ge- geb gec gee geg geh gel gen ger get ggb ggc ggg ggh ggn ggr ggt ghb ghc ghe ghg ghh ghl ghn ghr ght glb glc gle glg glh gll gln glr glt gnb gnc gne gnl gnn gnr gnt grb grc gre grg grh grl grn grr grt gtb gtc gte gtg gth gtl gtn gtr gtt hbb hbc hbe hbg hbh hbl hbn hbr hbt hcb hcc hce hcg hch hcl hcn hcr hct he- heb hec hee heg heh hel hen her het hgb hgc hge hgg hgh hgl hgn hgr hgt hhb hhc hhe hhg hhh hhl hhn hhr hht hlb hlc hle hlg hlh hll hln hlr hlt hnb hnc hne hng hnh hnl hnn hnt hr- hrb hrc hre hrg hrh hrl hrn hrr hrt htb htc hte htg hth htl htn htr htt lbb lbc lbe lbg lbh lbl lbr lbt lcb lcc lce lcg lch lcl lcn lcr lct leb lec lee leg leh lel len ler let lgb lgc lge lgg lgh lgl lgn lgr lgt lhb lhc lhh lhr lht llb llc lle llg lll lln llr llt lnb lnc lne lng lnh lnl lnn lnr lnt lrb lrc lrg lrh lrn lrr lrt ltb ltc lte ltg lth ltl ltr ltt nbb nbc nbe nbg nbl nbn nbr nbt ncb ncc nce ncg nch ncl ncn ncr nct ne- neb nec nee neg neh nel nen ner net ngb ngc nge ngg ngh ngl ngn ngt nhb nhc nhe nhg nhh nhl nhn nhr nht nlb nlc nle nlg nlh nll nln nlr nlt nnb nnc nne nng nnh nnl nnn nnt nrb nrc nre nrg nrl nrn nrr nrt ntb ntc nte ntg nth ntn ntr ntt rbb rbc rbe rbg rbh rbl rbn rbr rbt rcb rcc rce rcg rch rcl rcn rcr rct re- reb rec ree reg reh rel ren rer ret rgb rgc rge rgg rgh rgn rgr rgt rh- rhb rhc rhe rhg rhh rhl rhn rhr rht rlc rle rlg rlh rll rln rlr rlt rnb rnc rng rnh rnn rnr rnt rrb rrc rrg rrh rrl rrn rrr rrt rtb rtc rte rtg rtl rtn rtr rtt tbb tbc tbe tbg tbh tbl tbn tbr tbt tcb tcc tce tcg tch tcl tcn tcr tct te- teb tec tee teg teh tel ten ter tet tgb tgc tge tgg tgh tgl tgn tgr tgt th- thb thc the thg thh thl thn thr tht tlc tle tlg tlh tll tln tlr tlt tnb tnc tne tng tnh tnl tnn tnr tnt trb trc tre trg trh trl trn trr trt ttb ttc tte ttg tth ttl ttn ttr ttt

-ene bbbb bbch bbeb bbet bblb bbng bbrc bbrg bcbc bcbg bccc bccl bcec bcer bcet bche bctc bebb bebe bech beeb beeg beel been beer beet begg behn behr bele belg bell belt bene beng benn bent berc bere berg bern berr bert betc bete beth bett bght bhcc bhel bher bhet bhrt blbt bleb blee bleg bleh blet blrc blrg bneg bner bnet bnrr brcb brce breb brec bree breg brel bren brer bret brrr brtc btcc btcl btec bten btrc btrt bttb cbbc cbcc cbce cbcl cbcn cbcr cbct cbec cbee cber cbet cbgb cbhl cblb cblc cbln cbre cbrh cbrl cbrn cbrt cbtc cbtl ccbc ccbn cccb cccc cccl ccee ccel ccgc ccgt cche cchl cchr cclc cclg ccnb ccnc ccne ccnr ccrc ccre ccrg ccrl ccrt cctb cctc cctl cctt cec- cece cect ceeb ceec ceel cege cehl cel- celc cele cell celt cen- cene ceng cent cer- cerc cere cerl cern cert cet- cete cgcc cgcg cgel cger cgtl chce chch cheb chec chee cheh chel chen cher chet chgb chge chgn chlc chln chlr chlt chnb chnc chnl chnr chrb chrc chrn chrr chrt chtr chtt clec clee cleg cler clet cltb cltc cnbc cnbl cnel cnet cnrc cnrr cnrt cntc cntr crbc crcc crce crcr cre- creb crec cree creg creh cren cret crne crrt crtc crtl ctec cten ctge ctle ctlg ctne ctrc ctrl ctrn cttn e-cl ebbc ebbr ebcc ebel eben eber ecbc ecbe eccb eccc ecce eccl ecct eche echl echt eclt ecne ecrc ecrl ecrr ect- ectc ecth eeee eele eeng eent eerc eerg eetc eete eeth egbe egcc egcg egcr egec egee egel eger eggb egge eggh eghe eghh eglc egle