-er -up b-p b-u bbb bbe bbl bbn bbp bbr bbt bbu be- beb bee bel ben bep ber bet beu blb ble bll bln blp blr blt blu bnb bne bnl bnn bnp bnr bnt bnu bpb bpe bpl bpn bpp bpr bpt bpu brb bre brl brn brp brr brt bru btb bte btl btn btp btr btt btu bub bue bul bun bup bur but buu ebb ebe ebl ebn ebp ebr ebt ebu eeb eee eel een eep eer eet elb ele ell eln elp elr elt elu en- enb ene enl enn enp enr ent enu ep- epb epe epl epn epp epr ept epu erb ere erl ern erp err ert eru etb ete etl etn etp etr ett etu eu- eub eue eul eun eup eur eut l-p lbb lbe lbl lbp lbr lbt lbu leb lee lel len lep ler let leu llb lle lll lln llp llr llt llu lnb lne lnl lnn lnp lnr lnt lnu lpb lpe lpl lpn lpp lpr lpt lpu lrb lrn lrp lrr lrt lru ltb lte ltl ltp ltr ltt ltu lub lue lul lun lup lur lut luu nbb nbe nbl nbn nbp nbr nbt nbu ne- neb nee nel nen nep ner net neu nlb nle nll nln nlp nlr nlt nlu nnb nne nnl nnn nnp nnt nnu npb npe npl npn npp npr npt npu nrb nre nrl nrn nrp nrr nrt nru ntb nte ntn ntp ntr ntt ntu nub nue nul nun nup nur nut nuu p-p pbb pbe pbl pbn pbp pbr pbt pbu peb pee pel pen pep per pet peu plb ple pll pln plp plr plt plu pn- pnb pne pnl pnn pnp pnr pnt pnu ppb ppe ppl ppn ppp ppr ppt ppu prb pre prl prn prp prr prt pru pt- ptb pte ptl ptn ptp ptr ptt ptu pub pue pul pun pup pur put puu rbb rbe rbl rbn rbp rbr rbt rbu re- reb ree rel ren rep rer ret reu rle rll rln rlp rlr rlt rlu rnb rnn rnp rnr rnt rnu rpb rpe rpl rpn rpp rpr rpt rpu rrb rrl rrn rrp rrr rrt rru rtb rte rtl rtn rtp rtr rtt rtu rub rue run rup rur rut ruu tbb tbe tbl tbn tbp tbr tbt tbu te- teb tee tel ten tep ter tet teu tle tll tln tlp tlr tlt tlu tnb tne tnl tnn tnp tnr tnt tpb tpe tpl tpn tpp tpr tpt tpu trb tre trl trn trp trr trt tru ttb tte ttl ttn ttp ttr ttt ttu tub tue tul tun tup tur tut tuu ubb ube ubl ubn ubp ubr ubt ubu ueb uee uel uen uep uer uet ulb ule ull uln ulp ulr ult ulu un- unb une unl unn unp unr unt unu up- upb upe upn upp upr upt upu ur- urb ure url urn urp urr urt uru utb ute utl utn utp utr utt utu uue uun uur uut uuu