-er -up c-- ccc ccd cce ccm ccp ccr ccs cct ccu cdc cdd cde cdm cdp cdr cds cdt cdu ce- cec ced cee cem cep cer ces cet ceu cmc cmd cme cmm cmp cmr cms cmt cmu cpc cpd cpe cpm cpp cpr cps cpt cpu crc crd cre crm crp crr crs crt cru csc csd cse csm csp csr css cst csu ctc ctd cte ctm ctp ctr cts ctt ctu cuc cud cue cum cup cur cus cut cuu dcc dcd dce dcm dcp dcr dcs dct dcu ddc ddd dde ddm ddp ddr dds ddt ddu de- dec ded dee dem dep der des det deu dmc dmd dme dmm dmp dmr dms dmt dmu dpc dpd dpe dpm dpp dpr dps dpt dpu drc drd dre drm drp drr drs drt dru dsc dsd dse dsm dsp dsr dss dst dsu dtc dtd dte dtm dtp dtr dts dtt dtu duc dud due dum dup dur dus dut ec- ecc ecd ece ecm ecr ecs ect ecu ed- edc edd ede edm edp edr eds edt edu eec eed eee eem eep eer ees eet em- emc emd eme emm emp emr ems emt emu ep- epc epd epe epm epp epr eps ept epu erc erd ere erm erp err ers ert eru es- esc esd ese esm esp esr ess est esu etc etd ete etm etp etr ets ett etu eu- euc eud eue eup eur eus eut m-r mc- mcc mcd mce mcm mcp mcr mcs mct mcu mdc mdd mde mdm mdp mdr mds mdt mdu mec med mee mem mep mer mes met meu mmc mmd mme mmm mmp mmr mms mmt mmu mpc mpd mpe mpm mpp mpr mps mpt mpu mrc mrd mre mrm mrp mrr mrs mrt mru msc msd mse msm msp msr mss mst msu mtc mtd mte mtm mtp mtr mts mtt mtu muc mud mue mum mup mur mus mut muu p-p pcc pcd pce pcm pcp pcr pcs pct pcu pdc pdd pde pdm pdp pdr pds pdt pdu pec ped pee pem pep per pes pet peu pmc pmd pme pmm pmp pmr pms pmt pmu ppc ppd ppe ppm ppp ppr pps ppt ppu prc prd pre prm prp prr prs prt pru ps- psc psd pse psm psp psr pss pst psu pt- ptc ptd pte ptm ptp ptr pts ptt ptu puc pud pue pum pup pur pus put puu rcc rcd rce rcm rcp rcr rcs rct rcu rdc rdd rde rdm rdp rdr rds rdt rdu re- rec red ree rem rep rer res ret reu rmc rmd rme rmm rmp rmr rms rmt rpc rpd rpe rpm rpp rpr rps rpt rpu rrc rrd rrm rrp rrr rrs rrt rru rsc rsd rse rsm rsp rsr rss rst rsu rtc rtd rte rtm rtp rtr rts rtt rtu ruc rud rue rum rup rur rus rut ruu scc scd sce scm scp scr scs sct scu sdc sdd sde sdm sdp sdr sds sdt sdu se- sec sed see sem sep ser ses set seu smc smd sme smm smp smr sms smt smu spc spd spe spm spp spr sps spt spu sr- src srd sre srm srp srr srs srt ss- ssc ssd sse ssm ssp ssr sss sst ssu stc std ste stm stp str sts stt stu suc sud sue sum sup sur sus sut suu tcc tcd tce tcm tcp tcr tcs tct tcu tdc tdd tde tdm tdp tdr tds tdt tdu te- tec ted tee tem tep ter tes tet teu tmc tmd tme tmm tmp tmr tms tmt tmu tpc tpd tpe tpm tpp tpr tps tpt tpu trc trd tre trm trp trr trs trt tru tsc tsd tse tsm tsp tsr tss tst tsu ttc ttd tte ttm ttp ttr tts ttt ttu tuc tud tue tum tup tur tus tut tuu ucc ucd uce ucm ucp ucr ucs uct ucu udc udd ude udm udp udr uds udt udu uec ued uee uem uep uer ues uet um- umc umd ume umm ump umr ums umt umu up- upc upd upe upm upp upr ups upt upu ur- urc urd ure urm urp urr urs urt uru usc usd use usm usp usr uss ust usu utc utd ute utm utp utr uts utt utu uuc uue uum uur uus uut uuu