-er -ic c-- ccc ccd cce ccg cci cco ccr ccu ccx cdc cdd cde cdg cdi cdo cdr cdu cdx ce- cec ced cee ceg cei ceo cer ceu cex cgc cgd cge cgg cgi cgo cgr cgu ci- cic cid cie cig cii cio cir ciu cix co- coc cod coe cog coi coo cor cou cox crc crd cre crg cri cro crr cru crx cuc cud cue cug cui cuo cur cuu cxc cxi cxo cxr cxx dcc dcd dce dcg dci dco dcr dcu dcx ddc ddd dde ddg ddi ddo ddr ddu ddx de- dec ded dee deg dei deo der deu dex dgc dgd dge dgg dgi dgr dgu di- dic did die dig dii dio dir diu dix doc dod doe dog doi doo dor dou dox drc drd dre drg dri dro drr dru drx duc dud due dug dui duo dur dux dxc dxd dxi dxo dxr dxx ec- ecc ecd ece ecg eci eco ecr ecu ecx ed- edc edd ede edg edi edo edr edu edx eec eed eee eeg eeo eer eex egc egd ege egg egi ego egr egu egx eic eid eie eig eii eio eir eiu eix eo- eoc eod eoe eog eoi eoo eor eou erc erd ere erg eri ero err eru eu- euc eud eue eug eui eur eux ex- exc exd exe exi exo exr exu exx g-d gcc gcd gce gcg gci gco gcr gcu gdc gdd gde gdi gdo gdr gdu gdx ge- gec ged gee geg gei geo ger geu gex ggc ggd ggg ggi ggo ggr ggu gic gid gie gig gii gio gir giu goc god goe gog goi goo gor gou gox grc grd gre grg gri gro grr gru grx gu- guc gud gue gug gui guo gur guu i-d icc icd ice icg ici ico icr icu idc idd ide idg idi ido idr idu idx ie- iec ied iee ieg iei ier iex igc igd ige igg igi igo igr igu iic iid iie iii iio iir iiu iix io- ioc iod ioe iog ioi ioo ior iou ir- irc ird ire irg iri iro irr iru irx iu- iuc iud iue iug iui iur ixc ixe ixi o-i oc- occ ocd ocg oci oco ocr ocu ocx odc odd ode odg odi odo odr odu oec oed oee oeg oei oeo oer oex ogc ogd oge ogg ogi ogo ogx oic oid oie oii oio oir oiu oo- ooc ood oog ooi ooo oor oox or- orc ord ore org ori oro orr oru orx ou- ouc oud oue oui ouo our ox- oxc oxi oxo oxx rcc rcd rce rcg rci rco rcr rcu rcx rdc rdd rde rdg rdi rdo rdr rdu rdx re- rec red ree reg rei reo rer reu rex rgc rgd rge rgg rgi rgo rgr rgx ric rid rie rig rii rio rir rix roc rod roe rog roi roo ror rou rox rrc rrd rrg rri rrr rru ruc rud rue rug rui ruo rur ruu rux rxr ucc ucd uce ucg uci uco ucr ucu udc udd ude udg udi udo udr udu udx uec ued uee ueg uei uer ugc uge ugg ugi ugo ugr ugu ugx uic uid uie uig uii uio uir uiu uoc uod uoe uog uoo uor uox ur- urc urd ure urg uri uro urr uru urx uuc uue uug uur uuu uxc uxo uxr uxu xcd xci xcr xcx xdc xde xdi xdr xed xee xeg xer xeu xex xge xgi xic xie xii xio xiu xix xoc xod xog xoi xoo xor xox xrc xrd xrx xue xui xxi xxo xxx