-er -ic c-- ccc ccd cce cci ccl ccr ccs cct ccu cdc cdd cde cdi cdl cdr cds cdt cdu ce- cec ced cee cei cel cer ces cet ceu ci- cic cid cie cii cil cir cis cit ciu cl- clc cld cle cli cll clr cls clt clu crc crd cre cri crl crr crs crt cru csc csd cse csi csl csr css cst csu ctc ctd cte cti ctl ctr cts ctt ctu cuc cud cue cui cul cur cus cut cuu dcc dcd dce dci dcl dcr dcs dct dcu ddc ddd dde ddi ddl ddr dds ddt ddu de- dec ded dee dei del der des det deu di- dic did die dii dil dir dis dit diu dl- dlc dld dle dli dll dlr dls dlt dlu drc drd dre dri drl drr drs drt dru dsc dsd dse dsi dsl dsr dss dst dsu dtc dtd dte dti dtl dtr dts dtt dtu duc dud due dui dul dur dus dut ec- ecc ecd ece eci ecl ecr ecs ect ecu ed- edc edd ede edi edl edr eds edt edu eec eed eee eel eer ees eet eic eid eie eii eil eir eis eit eiu elc eld ele eli ell elr els elt elu erc erd ere eri erl err ers ert eru es- esc esd ese esi esl esr ess est esu etc etd ete eti etl etr ets ett etu eu- euc eud eue eui eul eur eus eut i-d icc icd ice ici icl icr ics ict icu idc idd ide idi idl idr ids idt idu ie- iec ied iee iei iel ier ies iet iic iid iie iii iil iir iis iit iiu il- ilc ild ile ili ill ilr ils ilt ilu ir- irc ird ire iri irl irr irs irt iru is- isc isd ise isi isl isr iss ist isu itc itd ite iti itl its itt itu iu- iuc iud iue iui iur ius iut lcc lcd lce lci lcl lcr lcs lct lcu ldc ldd lde ldi ldl ldr lds ldt ldu lec led lee lei lel ler les let leu lic lid lie lii lil lir lis lit liu llc lld lle lli lll llr lls llt llu lrc lrd lri lrr lrs lrt lru lsc lsd lse lsi lsl lsr lss lst lsu ltc ltd lte lti ltl ltr lts ltt ltu luc lud lue lui lul lur lus lut luu rcc rcd rce rci rcl rcr rcs rct rcu rdc rdd rde rdi rdl rdr rds rdt rdu re- rec red ree rei rel rer res ret reu ric rid rie rii ril rir ris rit rlc rld rle rli rll rlr rls rlt rlu rrc rrd rri rrl rrr rrs rrt rru rsc rsd rse rsi rsl rsr rss rst rsu rtc rtd rte rti rtl rtr rts rtt rtu ruc rud rue rui rur rus rut ruu scc scd sce sci scl scr scs sct scu sdc sdd sde sdi sdl sdr sds sdt sdu se- sec sed see sei sel ser ses set seu sic sid sie sii sil sir sis sit siu slc sld sle sli sll slr sls slt slu sr- src srd sre sri srl srr srs srt ss- ssc ssd sse ssi ssl ssr sss sst ssu stc std ste sti stl str sts stt stu suc sud sue sui sul sur sus sut suu tcc tcd tce tci tcl tcr tcs tct tcu tdc tdd tde tdi tdl tdr tds tdt tdu te- tec ted tee tei tel ter tes tet teu tic tid tie tii til tir tis tit tiu tlc tld tle tli tll tlr tls tlt tlu trc trd tre tri trl trr trs trt tru tsc tsd tse tsi tsl tsr tss tst tsu ttc ttd tte tti ttl ttr tts ttt ttu tuc tud tue tui tul tur tus tut tuu ucc ucd uce uci ucl ucr ucs uct ucu udc udd ude udi udl udr uds udt udu uec ued uee uei uel uer ues uet uic uid uie uii uil uir uis uit uiu ulc uld ule uli ull ulr uls ult ulu ur- urc urd ure uri url urr urs urt uru usc usd use usi usl usr uss ust usu utc utd ute uti utl utr uts utt utu uuc uue uur uus uut uuu