-er b-p bbb bbe bbg bbi bbl bbp bbr bbt be- beb bee beg bei bel bep ber bet bgb bge bgg bgi bgl bgp bgr bgt bi- bib bie big bii bil bip bir bit blb ble blg bli bll blp blr blt bpb bpe bpg bpi bpl bpp bpr bpt brb bre brg bri brl brp brr brt btb bte btg bti btl btp btr btt ebb ebe ebg ebi ebl ebp ebr ebt eeb eee eeg eel eep eer eet egb ege egg egi egl egp egr egt eib eie eig eii eil eip eir eit elb ele elg eli ell elp elr elt ep- epb epe epg epi epl epp epr ept erb ere erg eri erl erp err ert etb ete etg eti etl etp etr ett g-p gbe gbg gbi gbl gbp gbr gbt ge- geb gee geg gei gel gep ger get ggb ggg ggi ggp ggr ggt gib gie gig gii gil gip gir git glb gle glg gli gll glp glr glt gpb gpe gpg gpi gpl gpp gpr gpt grb gre grg gri grl grp grr grt gtb gte gtg gti gtl gtp gtr gtt ibb ibe ibg ibi ibl ibp ibr ibt ie- iee ieg iei iel iep ier iet igb ige igg igi igl igp igr igt iib iie iii iil iip iir iit il- ilb ile ilg ili ill ilp ilr ilt ipb ipe ipg ipi ipl ipp ipr ipt ir- irb ire irg iri irl irp irr irt itb ite itg iti itl itp itt l-p lbb lbe lbg lbi lbl lbp lbr lbt leb lee leg lei lel lep ler let lgb lge lgg lgi lgl lgp lgr lgt lib lie lig lii lil lip lir lit llb lle llg lli lll llp llr llt lpb lpe lpg lpi lpl lpp lpr lpt lrb lrg lri lrp lrr lrt ltb lte ltg lti ltl ltp ltr ltt p-p pbb pbe pbg pbi pbl pbp pbr pbt peb pee peg pei pel pep per pet pgb pge pgg pgi pgl pgp pgr pgt pib pie pig pii pil pip pir pit plb ple plg pli pll plp plr plt ppb ppe ppg ppi ppl ppp ppr ppt prb pre prg pri prl prp prr prt pt- ptb pte ptg pti ptl ptp ptr ptt rbb rbe rbg rbi rbl rbp rbr rbt re- reb ree reg rei rel rep rer ret rgb rge rgg rgi rgp rgr rgt rib rie rig rii ril rip rir rit rle rlg rli rll rlp rlr rlt rpb rpe rpg rpi rpl rpp rpr rpt rrb rrg rri rrl rrp rrr rrt rtb rte rtg rti rtl rtp rtr rtt tbb tbe tbg tbi tbl tbp tbr tbt te- teb tee teg tei tel tep ter tet tgb tge tgg tgi tgl tgp tgr tgt tib tie tig tii til tip tir tit tle tlg tli tll tlp tlr tlt tpb tpe tpg tpi tpl tpp tpr tpt trb tre trg tri trl trp trr trt ttb tte ttg tti ttl ttp ttr ttt