-er -ic bbb bbc bbe bbg bbi bbl bbn bbr bcb bcc bce bcg bci bcl bcn bcr be- beb bec bee beg bei bel ben ber bgb bgc bge bgg bgi bgl bgn bgr bi- bib bic bie big bii bil bin bir blb blc ble blg bli bll bln blr bnb bnc bne bng bni bnl bnn bnr brb bre brg bri brl brn brr c-- cbb cbc cbe cbg cbi cbl cbn cbr ccb ccc cce ccg cci ccl ccn ccr ce- ceb cec cee ceg cei cel cen cer cgb cgc cge cgg cgi cgl cgn cgr ci- cib cic cie cig cii cil cin cir cl- clb clc cle clg cli cll cln clr cn- cnb cnc cne cng cni cnl cnn cnr crb crc cre crg cri crl crn crr ebb ebc ebe ebg ebi ebl ebn ebr ec- ecb ecc ece ecg eci ecl ecn ecr eeb eec eee eeg eel een eer egb egc ege egg egi egl egn egr eib eic eie eig eii eil ein eir elb elc ele elg eli ell eln elr en- enb enc ene eng eni enl enn enr erb erc ere erg eri erl ern err gbc gbe gbg gbi gbl gbn gbr gcb gcc gce gcg gci gcl gcn gcr ge- geb gec gee geg gei gel gen ger ggb ggc ggg ggi ggn ggr gib gic gie gig gii gil gin gir glb glc gle glg gli gll gln glr gnb gnc gne gni gnl gnn gnr grb grc gre grg gri grl grn grr ibb ibc ibe ibg ibi ibl ibn ibr icb icc ice icg ici icl icn icr ie- iec iee ieg iei iel ien ier igb igc ige igg igi igl ign igr iib iic iie iii iil iin iir il- ilb ilc ile ilg ili ill iln ilr in- inb inc ine ing ini inl inn inr ir- irb irc ire irg iri irl irn irr lbb lbc lbe lbg lbi lbl lbr lcb lcc lce lcg lci lcl lcn lcr leb lec lee leg lei lel len ler lgb lgc lge lgg lgi lgl lgn lgr lib lic lie lig lii lil lin lir llb llc lle llg lli lll lln llr lnb lnc lne lng lni lnl lnn lnr lrb lrc lrg lri lrn lrr n-i nbb nbc nbe nbg nbi nbl nbn nbr ncb ncc nce ncg nci ncl ncn ncr ne- neb nec nee neg nei nel nen ner ngb ngc nge ngg ngi ngl ngn nib nic nie nig nii nil nin nir nlb nlc nle nlg nli nll nln nlr nnb nnc nne nng nni nnl nnn nrb nrc nre nrg nri nrl nrn nrr rbb rbc rbe rbg rbi rbl rbn rbr rcb rcc rce rcg rci rcl rcn rcr re- reb rec ree reg rei rel ren rer rgb rgc rge rgg rgi rgn rgr rib ric rie rig rii ril rin rir rlc rle rlg rli rll rln rlr rnb rnc rng rni rnn rnr rrb rrc rrg rri rrl rrn rrr