-er -ic bbb bbc bbd bbe bbg bbi bbo bbr bbs bcb bcc bcd bce bcg bci bco bcr bcs bcv bdb bdc bdd bde bdg bdi bdo bdr bds bdv be- beb bec bed bee beg bei beo ber bes bev bgb bgc bgd bge bgg bgi bgo bgr bgs bgv bi- bib bic bid bie big bii bio bir bis biv bob boc bod boe bog boi boo bor bos bov brb brd bre brg bri bro brr brs brv bsb bsc bsd bse bsg bsi bso bsr bss bsv bvb bvc bvd bve bvg bvi bvo bvr bvs bvv c-- cbb cbc cbd cbe cbg cbi cbo cbr cbs cbv ccb ccc ccd cce ccg cci cco ccr ccs ccv cdb cdc cdd cde cdg cdi cdo cdr cds cdv ce- ceb cec ced cee ceg cei ceo cer ces cev cgb cgc cgd cge cgg cgi cgo cgr cgs cgv ci- cib cic cid cie cig cii cio cir cis civ co- cob coc cod coe cog coi coo cor cos cov crb crc crd cre crg cri cro crr crs crv csb csc csd cse csg csi cso csr css csv cvb cvc cvd cve cvg cvi cvo cvr cvs cvv dbb dbc dbd dbe dbg dbi dbo dbr dbs dbv dcb dcc dcd dce dcg dci dco dcr dcs dcv ddb ddc ddd dde ddg ddi ddo ddr dds de- deb dec ded dee deg dei deo der des dev dgc dgd dge dgg dgi dgr dgs di- dib dic did die dig dii dio dir dis div dob doc dod doe dog doi doo dor dos dov drb drc drd dre drg dri dro drr drs drv dsb dsc dsd dse dsg dsi dso dsr dss dsv dvb dvc dvd dve dvg dvi dvr dvs ebb ebc ebd ebe ebg ebi ebo ebr ebs ebv ec- ecb ecc ecd ece ecg eci eco ecr ecs ecv ed- edb edc edd ede edg edi edo edr eds eeb eec eed eee eeg eeo eer ees eev egb egc egd ege egg egi ego egr egs eib eic eid eie eig eii eio eir eis eiv eo- eob eoc eod eoe eog eoi eoo eor eos erb erc erd ere erg eri ero err ers erv es- esb esc esd ese esg esi eso esr ess esv evb evc evd eve evg evi evo evr evs evv g-d gbc gbd gbe gbg gbi gbo gbr gbs gbv gcb gcc gcd gce gcg gci gco gcr gcs gdb gdc gdd gde gdi gdo gdr gds gdv ge- geb gec ged gee geg gei geo ger ges gev ggb ggc ggd ggg ggi ggo ggr ggs ggv gib gic gid gie gig gii gio gir gis giv gob goc god goe gog goi goo gor gos gov grb grc grd gre grg gri gro grr grs grv gsb gsc gsd gse gsg gsi gso gsr gss gsv gvb gvc gvd gve gvg gvi gvo gvr gvs i-d i-v ibb ibc ibd ibe ibg ibi ibo ibr ibs ibv icb icc icd ice icg ici ico icr ics icv idb idc idd ide idg idi ido idr ids idv ie- iec ied iee ieg iei ier ies iev igb igc igd ige igg igi igo igr igs iib iic iid iie iii iio iir iis io- iob ioc iod ioe iog ioi ioo ior ios iov ir- irb irc ird ire irg iri iro irr irs irv is- isb isc isd ise isg isi iso isr iss isv ivb ivc ivd ive ivg ivi ivo ivr ivs ivv o-i ob- obb obc obd obe obg obi obo obr obs obv oc- ocb occ ocd ocg oci oco ocr ocs ocv odb odc odd ode odg odi odo odr ods odv oeb oec oed oee oeg oei oeo oer oes ogc ogd oge ogg ogi ogo ogs oib oic oid oie oii oio oir ois oiv oo- oob ooc ood oog ooi ooo oor oos oov or- orb orc ord ore org ori oro orr ors orv os- osb osc osd ose osg osi oso osr oss osv ov- ovb ovc ovd ove ovi ovo ovs ovv rbb rbc rbd rbe rbg rbi rbo rbr rbs rcb rcc rcd rce rcg rci rco rcr rcs rcv rdb rdc rdd rde rdg rdi rdo rdr rds rdv re- reb rec red ree reg rei reo rer res rev rgb rgc rgd rge rgg rgi rgo rgr rgs rgv rib ric rid rie rig rii rio rir ris riv rob roc rod roe rog roi roo ror ros rov rrb rrc rrd rrg rri rrr rrs rsb rsc rsd rse rsg rsi rso rsr rss rsv rvb rvc rvd rve rvg rvi rvo rvr rvs rvv sbb sbc sbd sbe sbg sbi sbo sbr sbs sbv scb scc scd sce scg sci sco scr scs scv sdb sdc sdd sde sdg sdi sdo sdr sds sdv se- seb sec sed see seg sei seo ser ses sev sgb sgc sgd sge sgg sgi sgo sgr sgs sgv sib sic sid sie sig sii sio sir sis siv sob soc sod soe sog soi soo sor sos sov sr- srb src srd sre srg sri sro srr srs srv ss- ssb ssc ssd sse ssg ssi sso ssr sss ssv svb svc svd sve svg svi svo svr svs svv v-e vbc vbd vbg vbi vbo vbr vbs vbv vcc vcd vce vci vco vcr vcs vdb vdc vdd vde vdg vdi vdo vdr vds vdv veb vec ved vee veg vei veo ver ves vgc vgg vgo vgr vgs vi- vib vic vid vie vig vii vio vir vis viv vob voc vod voe vog voi voo vor vos vov vrb vrc vrd vre vrg vri vrr vrs vsb vsc vsd vse vsg vsi vso vsr vss vsv vvb vvc vvg vvi vvo vvr vvs vvv