-er bbb bbd bbe bbg bbi bbm bbo bbr bbs bbx bdb bdd bde bdg bdi bdm bdo bdr bds bdx be- beb bed bee beg bei bem beo ber bes bex bgb bgd bge bgg bgi bgm bgo bgr bgs bgx bi- bib bid bie big bii bim bio bir bis bix bmb bmd bme bmg bmi bmm bmo bmr bms bmx bob bod boe bog boi bom boo bor bos box brb brd bre brg bri brm bro brr brs brx bsb bsd bse bsg bsi bsm bso bsr bss bsx bxb bxd bxi bxm bxo bxx dbb dbd dbe dbg dbi dbm dbo dbr dbs dbx ddb ddd dde ddg ddi ddm ddo ddr dds ddx de- deb ded dee deg dei dem deo der des dex dgd dge dgg dgi dgm dgr dgs di- dib did die dig dii dim dio dir dis dix dmb dmd dme dmg dmi dmm dmo dmr dms dmx dob dod doe dog doi dom doo dor dos dox drb drd dre drg dri drm dro drr drs drx dsb dsd dse dsg dsi dsm dso dsr dss dsx dxd dxi dxo dxr dxs dxx ebb ebd ebe ebg ebi ebm ebo ebr ebs ebx ed- edb edd ede edg edi edm edo edr eds edx eeb eed eee eeg eem eeo eer ees eex egb egd ege egg egi egm ego egr egs egx eib eid eie eig eii eim eio eir eis eix em- emb emd eme emg emi emm emo emr ems emx eo- eob eod eoe eog eoi eom eoo eor eos erb erd ere erg eri erm ero err ers es- esb esd ese esg esi esm eso esr ess esx ex- exd exe exi exo exr exs exx g-d gbd gbe gbg gbi gbm gbo gbr gbs gbx gdb gdd gde gdi gdm gdo gdr gds gdx ge- geb ged gee geg gei gem geo ger ges gex ggb ggd ggg ggi ggm ggo ggr ggs gib gid gie gig gii gim gio gir gis gmb gmd gme gmg gmi gmm gmo gmr gms gmx gob god goe gog goi gom goo gor gos gox grb grd gre grg gri grm gro grr grs grx gsb gsd gse gsg gsi gsm gso gsr gss gsx gxs i-d ibb ibd ibe ibg ibi ibm ibo ibr ibs ibx idb idd ide idg idi idm ido idr ids idx ie- ied iee ieg iei iem ier ies iex igb igd ige igg igi igm igo igr igs iib iid iie iii iim iio iir iis iix im- imb imd ime img imi imm imo ims imx io- iob iod ioe iog ioi iom ioo ior ios ir- irb ird ire irg iri irm iro irr irs irx is- isb isd ise isg isi ism iso isr iss ixe ixi m-o m-r mbb mbd mbe mbg mbi mbm mbo mbr mbs mbx mdb mdd mde mdg mdi mdm mdo mdr mds mdx meb med mee meg mei mem meo mer mes mex mgb mgd mge mgi mgm mgo mgr mgs mgx mi- mib mid mie mig mii mim mio mir mis mix mmb mmd mme mmg mmi mmm mmo mmr mms mmx mob mod moe mog moi mom moo mor mos mox mrb mrd mre mrg mri mrm mro mrr mrs mrx msb msd mse msg msi msm mso msr mss msx mxd mxi mxr mxs o-i ob- obb obd obe obg obi obm obo obr obs obx odb odd ode odg odi odm odo odr ods oeb oed oee oeg oei oem oeo oer oes oex ogd oge ogg ogi ogo ogs ogx oib oid oie oii oim oio oir ois om- omb omd ome omg omi omm omo omr oms omx oo- oob ood oog ooi oom ooo oor oos oox or- orb ord ore org ori orm oro orr ors orx os- osb osd ose osg osi osm oso osr oss osx ox- oxb oxi oxo oxx rbb rbd rbe rbg rbi rbm rbo rbr rbs rbx rdb rdd rde rdg rdi rdm rdo rdr rds rdx re- reb red ree reg rei rem reo rer res rex rgb rgd rge rgg rgi rgo rgr rgs rgx rib rid rie rig rii rim rio rir ris rix rmb rmd rme rmg rmi rmm rmo rmr rms rmx rob rod roe rog roi rom roo ror ros rox rrb rrd rrg rri rrm rrr rrs rsb rsd rse rsg rsi rsm rso rsr rss rsx rxr rxs sbb sbd sbe sbg sbi sbm sbo sbr sbs sbx sdb sdd sde sdg sdi sdm sdo sdr sds se- seb sed see seg sei sem seo ser ses sex sgb sgd sge sgg sgi sgm sgo sgr sgs sgx sib sid sie sig sii sim sio sir sis six smb smd sme smg smi smm smo smr sms smx sob sod soe sog soi som soo sor sos sox sr- srb srd sre srg sri srm sro srr srs srx ss- ssb ssd sse ssg ssi ssm sso ssr sss ssx sxi sxm sxs xbe xbr xbx xdb xde xdi xdm xdr xds xed xee xeg xem xer xes xex xge xgi xie xii xio xis xix xmd xmg xmi xmm xmo xmr xms xmx xod xog xoi xom xoo xor xos xox xrd xrx xsb xsi xsm xss xxi xxo xxx