-er b-p bbb bbd bbe bbg bbi bbk bbp bbr bdb bdd bde bdg bdi bdk bdp bdr be- beb bed bee beg bei bek bep ber bgb bgd bge bgg bgi bgk bgp bgr bi- bib bid bie big bii bik bip bir bkb bke bkg bkk bkp bkr bpb bpd bpe bpg bpi bpp bpr brb brd bre brg bri brk brp brr dbb dbd dbe dbg dbi dbk dbp dbr ddb ddd dde ddg ddi ddk ddp ddr de- deb ded dee deg dei dek dep der dgd dge dgg dgi dgk dgp dgr di- dib did die dig dii dik dip dir dkb dke dkg dki dkk dkp dkr dpb dpd dpe dpg dpi dpk dpp dpr drb drd dre drg dri drk drp drr ebb ebd ebe ebg ebi ebk ebp ebr ed- edb edd ede edg edi edk edp edr eeb eed eee eeg eek eep eer egb egd ege egg egi egp egr eib eid eie eig eii eik eip eir ekb ekd eke ekg eki ekp ekr ep- epb epd epe epg epi epp epr erb erd ere erg eri erk erp err g-d g-p gbd gbe gbg gbi gbk gbp gbr gdb gdd gde gdi gdk gdp gdr ge- geb ged gee geg gei gek gep ger ggb ggd ggg ggi ggp ggr gib gid gie gig gii gik gip gir gkb gkd gkp gpb gpd gpe gpg gpi gpk gpp gpr grb grd gre grg gri grk grp grr i-d ibb ibd ibe ibg ibi ibk ibp ibr idb idd ide idg idi idk idp idr ie- ied iee ieg iei iek iep ier igb igd ige igg igi igk igp igr iib iid iie iii iip iir ikb ike iki ikk ikr ipb ipd ipe ipg ipi ipp ipr ir- irb ird ire irg iri irk irp irr kbb kbd kbe kbi kbk kbp kbr kdb kde kdg kdk kdp kdr ke- keb ked kee keg kei kek kep ker kgb kgd kgi kgp kib kid kie kig kii kik kip kir kkb kke kki kkk kkp kkr kpd kpe kpi kpk kpp kpr krd krg kri krk krp krr p-p pbb pbd pbe pbg pbi pbk pbp pbr pdb pdd pde pdg pdi pdk pdp pdr peb ped pee peg pei pek pep per pgb pgd pge pgg pgi pgk pgp pgr pib pid pie pig pii pik pip pir pkb pkd pke pkg pki pkp pkr ppb ppd ppe ppg ppi ppk ppp ppr prb prd pre prg pri prk prp prr rbb rbd rbe rbg rbi rbk rbp rbr rdb rdd rde rdg rdi rdp rdr re- reb red ree reg rei rek rep rer rgb rgd rge rgg rgi rgk rgp rgr rib rid rie rig rii rik rip rir rkb rke rkg rkk rkp rpb rpd rpe rpg rpi rpk rpp rpr rrb rrd rrg rri rrk rrp rrr