-er -ic c-- ccc ccd cce cci ccl ccr ccs cct cdc cdd cde cdi cdl cdr cds cdt ce- cec ced cee cei cel cer ces cet ci- cic cid cie cii cil cir cis cit cl- clc cld cle cli cll clr cls clt crc crd cre cri crl crr crs crt csc csd cse csi csl csr css cst ctc ctd cte cti ctl ctr cts ctt dcc dcd dce dci dcl dcr dcs dct ddc ddd dde ddi ddl ddr dds ddt de- dec ded dee dei del der des det di- dic did die dii dil dir dis dit dl- dlc dld dle dli dll dlr dls dlt drc drd dre dri drl drr drs drt dsc dsd dse dsi dsl dsr dss dst dtc dtd dte dti dtl dtr dts dtt ec- ecc ecd ece eci ecl ecr ecs ect ed- edc edd ede edi edl edr eds edt eec eed eee eel eer ees eet eic eid eie eii eil eir eis eit elc eld ele eli ell elr els elt erc erd ere eri erl err ers ert es- esc esd ese esi esl esr ess est etc etd ete eti etl etr ets ett i-d icc icd ice ici icl icr ics ict idc idd ide idi idl idr ids idt ie- iec ied iee iei iel ier ies iet iic iid iie iii iil iir iis iit il- ilc ild ile ili ill ilr ils ilt ir- irc ird ire iri irl irr irs irt is- isc isd ise isi isl isr iss ist itc itd ite iti itl its itt lcc lcd lce lci lcl lcr lcs lct ldc ldd lde ldi ldl ldr lds ldt lec led lee lei lel ler les let lic lid lie lii lil lir lis lit llc lld lle lli lll llr lls llt lrc lrd lri lrr lrs lrt lsc lsd lse lsi lsl lsr lss lst ltc ltd lte lti ltl ltr lts ltt rcc rcd rce rci rcl rcr rcs rct rdc rdd rde rdi rdl rdr rds rdt re- rec red ree rei rel rer res ret ric rid rie rii ril rir ris rit rlc rld rle rli rll rlr rls rlt rrc rrd rri rrl rrr rrs rrt rsc rsd rse rsi rsl rsr rss rst rtc rtd rte rti rtl rtr rts rtt scc scd sce sci scl scr scs sct sdc sdd sde sdi sdl sdr sds sdt se- sec sed see sei sel ser ses set sic sid sie sii sil sir sis sit slc sld sle sli sll slr sls slt sr- src srd sre sri srl srr srs srt ss- ssc ssd sse ssi ssl ssr sss sst stc std ste sti stl str sts stt tcc tcd tce tci tcl tcr tcs tct tdc tdd tde tdi tdl tdr tds tdt te- tec ted tee tei tel ter tes tet tic tid tie tii til tir tis tit tlc tld tle tli tll tlr tls tlt trc trd tre tri trl trr trs trt tsc tsd tse tsi tsl tsr tss tst ttc ttd tte tti ttl ttr tts ttt