-er -ey -ic c-- ccc cce cci ccm cco ccr ccx ce- cec cee cei cem ceo cer cex cey ci- cic cie cii cim cio cir cix cmc cme cmi cmm cmo cmr cmx cmy co- coc coe coi com coo cor cox coy crc cre cri crm cro crr crx cry cxc cxi cxo cxr cxx cyc cye cym cyo cyr ec- ecc ece eci ecm eco ecr ecx eec eee eem eeo eer eex eey eic eie eii eim eio eir eix em- emc eme emi emm emo emr emx eo- eoc eoe eoi eom eoo eor erc ere eri erm ero err ery ex- exc exe exi exo exr exx exy eyc eye eym eyo eyr icc ice ici icm ico icr icy ie- iec iee iei iem ier iex iey iic iie iii iim iio iir iix im- imc ime imi imm imo imx imy io- ioc ioe ioi iom ioo ior ir- irc ire iri irm iro irr irx iry ixc ixe ixi ixy iyc iye iym iyo iyr iyy m-o m-r mc- mcc mce mci mcm mco mcr mcx mec mee mei mem meo mer mex mey mi- mic mie mii mim mio mir mix miy mmc mme mmi mmm mmo mmr mmx moc moe moi mom moo mor mox moy mrc mre mri mrm mro mrr mrx mry mxc mxi mxr my- myc mye mym myo myr myx o-i oc- occ oci ocm oco ocr ocx oec oee oei oem oeo oer oex oey oic oie oii oim oio oir om- omc ome omi omm omo omr omx omy oo- ooc ooi oom ooo oor oox or- orc ore ori orm oro orr orx ory ox- oxc oxi oxo oxx oxy oye oyi oyo rcc rce rci rcm rco rcr rcx re- rec ree rei rem reo rer rex rey ric rie rii rim rio rir rix riy rmc rme rmi rmm rmo rmr rmx roc roe roi rom roo ror rox roy rrc rri rrm rrr rxr ry- ryc rye rym ryo ryr ryy xci xcr xcx xee xem xer xex xic xie xii xio xix xmc xmi xmm xmo xmr xmx xoc xoi xom xoo xor xox xrc xrx xry xxi xxo xxx xxy xyr xyy ycc yce yci yco ycy yec yee yei yem yeo yer yex yey yie yii yim yio yir ymc yme ymi ymm ymo yoc yoe yoi yom yoo yor yox yoy yrc yre yro yxe yxy yyc yye yyy