-er -ic c-- ccc cce ccf cci ccm cco ccr ccs cct ce- cec cee cef cei cem ceo cer ces cet cfc cfe cff cfi cfm cfo cfr cfs cft ci- cic cie cif cii cim cio cir cis cit cmc cme cmf cmi cmm cmo cmr cms cmt co- coc coe cof coi com coo cor cos cot crc cre crf cri crm cro crr crs crt csc cse csf csi csm cso csr css cst ctc cte ctf cti ctm cto ctr cts ctt ec- ecc ece ecf eci ecm eco ecr ecs ect eec eee eef eem eeo eer ees eet ef- efc efe eff efi efm efo efr efs eft eic eie eif eii eim eio eir eis eit em- emc eme emf emi emm emo emr ems emt eo- eoc eoe eof eoi eom eoo eor eos eot erc ere erf eri erm ero err ers ert es- esc ese esf esi esm eso esr ess est etc ete etf eti etm eto etr ets ett fcc fce fcf fci fcm fco fcr fcs fct fec fee fef fei fem feo fer fes fet ffc ffe fff ffi ffm ffo ffr ffs fft fic fie fif fii fim fir fis fit fmc fme fmf fmi fmm fmo fmr fms fmt foc foe fof foi fom foo for fos fot frc fre frf fri frm fro frr frs frt fsc fse fsf fsi fsm fso fsr fss fst ftc fte ftf fti ftm fto ftr fts ftt i-f icc ice icf ici icm ico icr ics ict ie- iec iee ief iei iem ier ies iet ifc ife iff ifi ifm ifo ifr ifs ift iic iie iif iii iim iio iir iis iit im- imc ime imf imi imm imo ims imt io- ioc ioe iof ioi iom ioo ior ios iot ir- irc ire irf iri irm iro irr irs irt is- isc ise isf isi ism iso isr iss ist itc ite itf iti itm ito its itt m-f m-o m-r mc- mcc mce mcf mci mcm mco mcr mcs mct mec mee mef mei mem meo mer mes met mfc mfe mff mfi mfm mfo mfr mfs mft mi- mic mie mif mii mim mio mir mis mit mmc mme mmf mmi mmm mmo mmr mms mmt moc moe mof moi mom moo mor mos mot mrc mre mrf mri mrm mro mrr mrs mrt msc mse msf msi msm mso msr mss mst mtc mte mtf mti mtm mto mtr mts mtt o-i oc- occ ocf oci ocm oco ocr ocs oct oec oee oef oei oem oeo oer oes oet of- ofc ofe off ofi ofm ofo ofr ofs oft oic oie oif oii oim oio oir ois oit om- omc ome omf omi omm omo omr oms omt oo- ooc oof ooi oom ooo oor oos oot or- orc ore orf ori orm oro orr ors ort os- osc ose osf osi osm oso osr oss ost ot- otc ote otf oti otm oto otr ots ott rcc rce rcf rci rcm rco rcr rcs rct re- rec ree ref rei rem reo rer res ret rfc rfe rff rfi rfm rfo rfr rfs rft ric rie rif rii rim rio rir ris rit rmc rme rmf rmi rmm rmo rmr rms rmt roc roe rof roi rom roo ror ros rot rrc rrf rri rrm rrr rrs rrt rsc rse rsf rsi rsm rso rsr rss rst rtc rte rtf rti rtm rto rtr rts rtt scc sce scf sci scm sco scr scs sct se- sec see sef sei sem seo ser ses set sfc sfe sff sfi sfm sfo sfr sfs sft sic sie sif sii sim sio sir sis sit smc sme smf smi smm smo smr sms smt soc soe sof soi som soo sor sos sot sr- src sre srf sri srm sro srr srs srt ss- ssc sse ssf ssi ssm sso ssr sss sst stc ste stf sti stm sto str sts stt tcc tce tcf tci tcm tco tcr tcs tct te- tec tee tef tei tem teo ter tes tet tfc tfe tff tfi tfm tfo tfr tfs tft tic tie tif tii tim tio tir tis tit tmc tme tmf tmi tmm tmo tmr tms tmt to- toc toe tof toi tom too tor tos tot trc tre trf tri trm tro trr trs trt tsc tse tsf tsi tsm tso tsr tss tst ttc tte ttf tti ttm tto ttr tts ttt