-er -ic c-- ccc ccd cce cci ccm cco ccr cct cdc cdd cde cdi cdm cdo cdr cdt ce- cec ced cee cei cem ceo cer cet ci- cic cid cie cii cim cio cir cit cmc cmd cme cmi cmm cmo cmr cmt co- coc cod coe coi com coo cor cot crc crd cre cri crm cro crr crt ctc ctd cte cti ctm cto ctr ctt dcc dcd dce dci dcm dco dcr dct ddc ddd dde ddi ddm ddo ddr ddt de- dec ded dee dei dem deo der det di- dic did die dii dim dio dir dit dmc dmd dme dmi dmm dmo dmr dmt doc dod doe doi dom doo dor dot drc drd dre dri drm dro drr drt dtc dtd dte dti dtm dto dtr dtt ec- ecc ecd ece eci ecm eco ecr ect ed- edc edd ede edi edm edo edr edt eec eed eee eem eeo eer eet eic eid eie eii eim eio eir eit em- emc emd eme emi emm emo emr emt eo- eoc eod eoe eoi eom eoo eor eot erc erd ere eri erm ero err ert etc etd ete eti etm eto etr ett i-d icc icd ice ici icm ico icr ict idc idd ide idi idm ido idr idt ie- iec ied iee iei iem ier iet iic iid iie iii iim iio iir iit im- imc imd ime imi imm imo imt io- ioc iod ioe ioi iom ioo ior iot ir- irc ird ire iri irm iro irr irt itc itd ite iti itm ito itt m-o m-r mc- mcc mcd mce mci mcm mco mcr mct mdc mdd mde mdi mdm mdo mdr mdt mec med mee mei mem meo mer met mi- mic mid mie mii mim mio mir mit mmc mmd mme mmi mmm mmo mmr mmt moc mod moe moi mom moo mor mot mrc mrd mre mri mrm mro mrr mrt mtc mtd mte mti mtm mto mtr mtt o-i oc- occ ocd oci ocm oco ocr oct odc odd ode odi odm odo odr odt oec oed oee oei oem oeo oer oet oic oid oie oii oim oio oir oit om- omc omd ome omi omm omo omr omt oo- ooc ood ooi oom ooo oor oot or- orc ord ore ori orm oro orr ort ot- otc otd ote oti otm oto otr ott rcc rcd rce rci rcm rco rcr rct rdc rdd rde rdi rdm rdo rdr rdt re- rec red ree rei rem reo rer ret ric rid rie rii rim rio rir rit rmc rmd rme rmi rmm rmo rmr rmt roc rod roe roi rom roo ror rot rrc rrd rri rrm rrr rrt rtc rtd rte rti rtm rto rtr rtt tcc tcd tce tci tcm tco tcr tct tdc tdd tde tdi tdm tdo tdr tdt te- tec ted tee tei tem teo ter tet tic tid tie tii tim tio tir tit tmc tmd tme tmi tmm tmo tmr tmt to- toc tod toe toi tom too tor tot trc trd tre tri trm tro trr trt ttc ttd tte tti ttm tto ttr ttt