-er -up b-p b-u bbb bbe bbk bbn bbp bbr bbt bbu be- beb bee bek ben bep ber bet beu bkb bke bkk bkn bkp bkr bkt bnb bne bnk bnn bnp bnr bnt bnu bpb bpe bpn bpp bpr bpt bpu brb bre brk brn brp brr brt bru btb bte btk btn btp btr btt btu bub bue buk bun bup bur but buu ebb ebe ebk ebn ebp ebr ebt ebu eeb eee eek een eep eer eet ekb eke ekp ekr ekt eku en- enb ene enk enn enp enr ent enu ep- epb epe epn epp epr ept epu erb ere erk ern erp err ert eru etb ete etk etn etp etr ett etu eu- eub eue eun eup eur eut k-t kbb kbe kbk kbn kbp kbr kbu ke- keb kee kek ken kep ker ket kkb kke kkk kkn kkp kkr kkt kku kn- kne knk knn knp knr knt knu kpe kpk kpn kpp kpr kpt kpu krk krn krp krr krt kru ktb kte ktk ktn ktp ktr ktt ktu kub kue kuk kun kup kur kut kuu nbb nbe nbk nbn nbp nbr nbt nbu ne- neb nee nek nen nep ner net neu nke nkk nkn nkp nkr nkt nku nnb nne nnk nnn nnp nnt nnu npb npe npn npp npr npt npu nrb nre nrk nrn nrp nrr nrt nru ntb nte ntk ntn ntp ntr ntt ntu nub nue nuk nun nup nur nut nuu p-p pbb pbe pbk pbn pbp pbr pbt pbu peb pee pek pen pep per pet peu pkb pke pkn pkp pkr pkt pku pn- pnb pne pnk pnn pnp pnr pnt pnu ppb ppe ppk ppn ppp ppr ppt ppu prb pre prk prn prp prr prt pru pt- ptb pte ptk ptn ptp ptr ptt ptu pub pue puk pun pup pur put puu rbb rbe rbk rbn rbp rbr rbt rbu re- reb ree rek ren rep rer ret reu rkb rke rkk rkp rkt rku rnb rnn rnp rnr rnt rnu rpb rpe rpk rpn rpp rpr rpt rpu rrb rrk rrn rrp rrr rrt rru rtb rte rtk rtn rtp rtr rtt rtu rub rue ruk run rup rur rut ruu tbb tbe tbk tbn tbp tbr tbt tbu te- teb tee tek ten tep ter tet teu tkb tke tkk tkp tkr tkt tnb tne tnk tnn tnp tnr tnt tpb tpe tpk tpn tpp tpr tpt tpu trb tre trk trn trp trr trt tru ttb tte ttk ttn ttp ttr ttt ttu tub tue tuk tun tup tur tut tuu ubb ube ubk ubn ubp ubr ubt ubu ueb uee uen uep uer uet ukb uke ukk ukn ukp ukr uku un- unb une unk unn unp unr unt unu up- upb upe upk upn upp upr upt upu ur- urb ure urk urn urp urr urt uru utb ute utk utn utp utr utt utu uue uun uur uut uuu