-er bbb bbd bbe bbg bbi bbm bbr bbx bdb bdd bde bdg bdi bdm bdr bdx be- beb bed bee beg bei bem ber bex bgb bgd bge bgg bgi bgm bgr bgx bi- bib bid bie big bii bim bir bix bmb bmd bme bmg bmi bmm bmr bmx brb brd bre brg bri brm brr brx bxb bxd bxi bxm bxx dbb dbd dbe dbg dbi dbm dbr dbx ddb ddd dde ddg ddi ddm ddr ddx de- deb ded dee deg dei dem der dex dgd dge dgg dgi dgm dgr di- dib did die dig dii dim dir dix dmb dmd dme dmg dmi dmm dmr dmx drb drd dre drg dri drm drr drx dxd dxi dxr dxx ebb ebd ebe ebg ebi ebm ebr ebx ed- edb edd ede edg edi edm edr edx eeb eed eee eeg eem eer eex egb egd ege egg egi egm egr egx eib eid eie eig eii eim eir eix em- emb emd eme emg emi emm emr emx erb erd ere erg eri erm err ex- exd exe exi exr exx g-d gbd gbe gbg gbi gbm gbr gbx gdb gdd gde gdi gdm gdr gdx ge- geb ged gee geg gei gem ger gex ggb ggd ggg ggi ggm ggr gib gid gie gig gii gim gir gmb gmd gme gmg gmi gmm gmr gmx grb grd gre grg gri grm grr grx i-d ibb ibd ibe ibg ibi ibm ibr ibx idb idd ide idg idi idm idr idx ie- ied iee ieg iei iem ier iex igb igd ige igg igi igm igr iib iid iie iii iim iir iix im- imb imd ime img imi imm imx ir- irb ird ire irg iri irm irr irx ixe ixi m-r mbb mbd mbe mbg mbi mbm mbr mbx mdb mdd mde mdg mdi mdm mdr mdx meb med mee meg mei mem mer mex mgb mgd mge mgi mgm mgr mgx mi- mib mid mie mig mii mim mir mix mmb mmd mme mmg mmi mmm mmr mmx mrb mrd mre mrg mri mrm mrr mrx mxd mxi mxr rbb rbd rbe rbg rbi rbm rbr rbx rdb rdd rde rdg rdi rdm rdr rdx re- reb red ree reg rei rem rer rex rgb rgd rge rgg rgi rgr rgx rib rid rie rig rii rim rir rix rmb rmd rme rmg rmi rmm rmr rmx rrb rrd rrg rri rrm rrr rxr xbe xbr xbx xdb xde xdi xdm xdr xed xee xeg xem xer xex xge xgi xie xii xix xmd xmg xmi xmm xmr xmx xrd xrx xxi xxx