-er -ic c-- ccc ccd cce ccg cci ccr ccs cct ccu cdc cdd cde cdg cdi cdr cds cdt cdu ce- cec ced cee ceg cei cer ces cet ceu cgc cgd cge cgg cgi cgr cgs cgt cgu ci- cic cid cie cig cii cir cis cit ciu crc crd cre crg cri crr crs crt cru csc csd cse csg csi csr css cst csu ctc ctd cte ctg cti ctr cts ctt ctu cuc cud cue cug cui cur cus cut cuu dcc dcd dce dcg dci dcr dcs dct dcu ddc ddd dde ddg ddi ddr dds ddt ddu de- dec ded dee deg dei der des det deu dgc dgd dge dgg dgi dgr dgs dgt dgu di- dic did die dig dii dir dis dit diu drc drd dre drg dri drr drs drt dru dsc dsd dse dsg dsi dsr dss dst dsu dtc dtd dte dtg dti dtr dts dtt dtu duc dud due dug dui dur dus dut ec- ecc ecd ece ecg eci ecr ecs ect ecu ed- edc edd ede edg edi edr eds edt edu eec eed eee eeg eer ees eet egc egd ege egg egi egr egs egt egu eic eid eie eig eii eir eis eit eiu erc erd ere erg eri err ers ert eru es- esc esd ese esg esi esr ess est esu etc etd ete etg eti etr ets ett etu eu- euc eud eue eug eui eur eus eut g-d gcc gcd gce gcg gci gcr gcs gct gcu gdc gdd gde gdi gdr gds gdt gdu ge- gec ged gee geg gei ger ges get geu ggc ggd ggg ggi ggr ggs ggt ggu gic gid gie gig gii gir gis git giu grc grd gre grg gri grr grs grt gru gsc gsd gse gsg gsi gsr gss gst gsu gtc gtd gte gtg gti gtr gts gtt gtu gu- guc gud gue gug gui gur gus gut guu i-d icc icd ice icg ici icr ics ict icu idc idd ide idg idi idr ids idt idu ie- iec ied iee ieg iei ier ies iet igc igd ige igg igi igr igs igt igu iic iid iie iii iir iis iit iiu ir- irc ird ire irg iri irr irs irt iru is- isc isd ise isg isi isr iss ist isu itc itd ite itg iti its itt itu iu- iuc iud iue iug iui iur ius iut rcc rcd rce rcg rci rcr rcs rct rcu rdc rdd rde rdg rdi rdr rds rdt rdu re- rec red ree reg rei rer res ret reu rgc rgd rge rgg rgi rgr rgs rgt ric rid rie rig rii rir ris rit rrc rrd rrg rri rrr rrs rrt rru rsc rsd rse rsg rsi rsr rss rst rsu rtc rtd rte rtg rti rtr rts rtt rtu ruc rud rue rug rui rur rus rut ruu scc scd sce scg sci scr scs sct scu sdc sdd sde sdg sdi sdr sds sdt sdu se- sec sed see seg sei ser ses set seu sgc sgd sge sgg sgi sgr sgs sgt sgu sic sid sie sig sii sir sis sit siu sr- src srd sre srg sri srr srs srt ss- ssc ssd sse ssg ssi ssr sss sst ssu stc std ste stg sti str sts stt stu suc sud sue sug sui sur sus sut suu tcc tcd tce tcg tci tcr tcs tct tcu tdc tdd tde tdg tdi tdr tds tdt tdu te- tec ted tee teg tei ter tes tet teu tgc tge tgg tgi tgr tgs tgt tgu tic tid tie tig tii tir tis tit tiu trc trd tre trg tri trr trs trt tru tsc tsd tse tsg tsi tsr tss tst tsu ttc ttd tte ttg tti ttr tts ttt ttu tuc tud tue tug tui tur tus tut tuu ucc ucd uce ucg uci ucr ucs uct ucu udc udd ude udg udi udr uds udt udu uec ued uee ueg uei uer ues uet ugc uge ugg ugi ugr ugs ugt ugu uic uid uie uig uii uir uis uit uiu ur- urc urd ure urg uri urr urs urt uru usc usd use usg usi usr uss ust usu utc utd ute uti utr uts utt utu uuc uue uug uur uus uut uuu