-er -ic -up c-- ccc cce cci ccl ccp ccr ccs cct ccu ce- cec cee cei cel cep cer ces cet ceu ci- cic cie cii cil cip cir cis cit ciu cl- clc cle cli cll clp clr cls clt clu cpc cpe cpi cpl cpp cpr cps cpt cpu crc cre cri crl crp crr crs crt cru csc cse csi csl csp csr css cst csu ctc cte cti ctl ctp ctr cts ctt ctu cuc cue cui cul cup cur cus cut cuu ec- ecc ece eci ecl ecr ecs ect ecu eec eee eel eep eer ees eet eic eie eii eil eip eir eis eit eiu elc ele eli ell elp elr els elt elu ep- epc epe epi epl epp epr eps ept epu erc ere eri erl erp err ers ert eru es- esc ese esi esl esp esr ess est esu etc ete eti etl etp etr ets ett etu eu- euc eue eui eul eup eur eus eut icc ice ici icl icp icr ics ict icu ie- iec iee iei iel iep ier ies iet iic iie iii iil iip iir iis iit iiu il- ilc ile ili ill ilp ilr ils ilt ilu ipc ipe ipi ipl ipp ipr ips ipt ipu ir- irc ire iri irl irp irr irs irt iru is- isc ise isi isl isp isr iss ist isu itc ite iti itl itp its itt itu iu- iuc iue iui iup iur ius iut l-p lcc lce lci lcl lcp lcr lcs lct lcu lec lee lei lel lep ler les let leu lic lie lii lil lip lir lis lit liu llc lle lli lll llp llr lls llt llu lpc lpe lpi lpl lpp lpr lps lpt lpu lrc lri lrp lrr lrs lrt lru lsc lse lsi lsl lsp lsr lss lst lsu ltc lte lti ltl ltp ltr lts ltt ltu luc lue lui lul lup lur lus lut luu p-p pcc pce pci pcl pcp pcr pcs pct pcu pec pee pei pel pep per pes pet peu pic pie pii pil pip pir pis pit piu plc ple pli pll plp plr pls plt plu ppc ppe ppi ppl ppp ppr pps ppt ppu prc pre pri prl prp prr prs prt pru ps- psc pse psi psl psp psr pss pst psu pt- ptc pte pti ptl ptp ptr pts ptt ptu puc pue pui pul pup pur pus put puu rcc rce rci rcl rcp rcr rcs rct rcu re- rec ree rei rel rep rer res ret reu ric rie rii ril rip rir ris rit rlc rle rli rll rlp rlr rls rlt rlu rpc rpe rpi rpl rpp rpr rps rpt rpu rrc rri rrl rrp rrr rrs rrt rru rsc rse rsi rsl rsp rsr rss rst rsu rtc rte rti rtl rtp rtr rts rtt rtu ruc rue rui rup rur rus rut ruu scc sce sci scl scp scr scs sct scu se- sec see sei sel sep ser ses set seu sic sie sii sil sip sir sis sit siu slc sle sli sll slp slr sls slt slu spc spe spi spl spp spr sps spt spu sr- src sre sri srl srp srr srs srt ss- ssc sse ssi ssl ssp ssr sss sst ssu stc ste sti stl stp str sts stt stu suc sue sui sul sup sur sus sut suu tcc tce tci tcl tcp tcr tcs tct tcu te- tec tee tei tel tep ter tes tet teu tic tie tii til tip tir tis tit tiu tlc tle tli tll tlp tlr tls tlt tlu tpc tpe tpi tpl tpp tpr tps tpt tpu trc tre tri trl trp trr trs trt tru tsc tse tsi tsl tsp tsr tss tst tsu ttc tte tti ttl ttp ttr tts ttt ttu tuc tue tui tul tup tur tus tut tuu ucc uce uci ucl ucp ucr ucs uct ucu uec uee uei uel uep uer ues uet uic uie uii uil uip uir uis uit uiu ulc ule uli ull ulp ulr uls ult ulu up- upc upe upi upp upr ups upt upu ur- urc ure uri url urp urr urs urt uru usc use usi usl usp usr uss ust usu utc ute uti utl utp utr uts utt utu uuc uue uur uus uut uuu