-er -ic -up c-- ccc cce cci cck ccl ccp ccr ccs cct ccu ce- cec cee cei cek cel cep cer ces cet ceu ci- cic cie cii cik cil cip cir cis cit ciu ckc cki cks ckt cl- clc cle cli clk cll clp clr cls clt clu cpc cpe cpi cpk cpl cpp cpr cps cpt cpu crc cre cri crk crl crp crr crs crt cru csc cse csi csk csl csp csr css cst csu ctc cte cti ctk ctl ctp ctr cts ctt ctu cuc cue cui cuk cul cup cur cus cut cuu ec- ecc ece eci eck ecl ecr ecs ect ecu eec eee eek eel eep eer ees eet eic eie eii eik eil eip eir eis eit eiu ekc eke eki ekl ekp ekr eks ekt eku elc ele eli elk ell elp elr els elt elu ep- epc epe epi epl epp epr eps ept epu erc ere eri erk erl erp err ers ert eru es- esc ese esi esk esl esp esr ess est esu etc ete eti etk etl etp etr ets ett etu eu- euc eue eui eul eup eur eus eut icc ice ici ick icl icp icr ics ict icu ie- iec iee iei iek iel iep ier ies iet iic iie iii iil iip iir iis iit iiu ikc ike iki ikk ikl ikr iks ikt iku il- ilc ile ili ilk ill ilp ilr ils ilt ilu ipc ipe ipi ipl ipp ipr ips ipt ipu ir- irc ire iri irk irl irp irr irs irt iru is- isc ise isi isk isl isp isr iss ist isu itc ite iti itk itl itp its itt itu iu- iuc iue iui iup iur ius iut k-t kcc kce kci kck kcl kcp kcr kcs kct kcu ke- kec kee kei kek kel kep ker kes ket kic kie kii kik kil kip kir kis kit kiu kkc kke kki kkk kkl kkp kkr kks kkt kku kl- klc kli klr kls klt klu kpc kpe kpi kpk kpl kpp kpr kps kpt kpu krc kri krk krl krp krr krs krt kru ksc kse ksi ksk ksl ksp ksr kss kst ksu ktc kte ktk ktl ktp ktr kts ktt ktu kuc kue kui kuk kul kup kur kus kut kuu l-p lcc lce lci lck lcl lcp lcr lcs lct lcu lec lee lei lek lel lep ler les let leu lic lie lii lik lil lip lir lis lit liu lkl lkp lkr lks lkt llc lle lli llk lll llp llr lls llt llu lpc lpe lpi lpk lpl lpp lpr lps lpt lpu lrc lri lrk lrp lrr lrs lrt lru lsc lse lsi lsk lsl lsp lsr lss lst lsu ltc lte lti ltk ltl ltp ltr lts ltt ltu luc lue lui luk lul lup lur lus lut luu p-p pcc pce pci pck pcl pcp pcr pcs pct pcu pec pee pei pek pel pep per pes pet peu pic pie pii pik pil pip pir pis pit piu pkc pke pki pkl pkp pkr pks pkt pku plc ple pli plk pll plp plr pls plt plu ppc ppe ppi ppk ppl ppp ppr pps ppt ppu prc pre pri prk prl prp prr prs prt pru ps- psc pse psi psk psl psp psr pss pst psu pt- ptc pte pti ptk ptl ptp ptr pts ptt ptu puc pue pui puk pul pup pur pus put puu rcc rce rci rcl rcp rcr rcs rct rcu re- rec ree rei rek rel rep rer res ret reu ric rie rii rik ril rip rir ris rit rkc rke rkk rkp rks rkt rku rlc rle rli rll rlp rlr rls rlt rlu rpc rpe rpi rpk rpl rpp rpr rps rpt rpu rrc rri rrk rrl rrp rrr rrs rrt rru rsc rse rsi rsk rsl rsp rsr rss rst rsu rtc rte rti rtk rtl rtp rtr rts rtt rtu ruc rue rui ruk rup rur rus rut ruu scc sce sci sck scl scp scr scs sct scu se- sec see sei sek sel sep ser ses set seu sic sie sii sik sil sip sir sis sit siu sk- skc ske ski skk skl skp skr sks skt sku slc sle sli slk sll slp slr sls slt slu spc spe spi spk spl spp spr sps spt spu sr- src sre sri srk srl srp srr srs srt ss- ssc sse ssi ssk ssl ssp ssr sss sst ssu stc ste sti stk stl stp str sts stt stu suc sue sui suk sul sup sur sus sut suu tcc tce tci tck tcl tcp tcr tcs tct tcu te- tec tee tei tek tel tep ter tes tet teu tic tie tii tik til tip tir tis tit tiu tkc tke tkk tkl tkp tkr tks tkt tlc tle tli tlk tll tlp tlr tls tlt tlu tpc tpe tpi tpk tpl tpp tpr tps tpt tpu trc tre tri trk trl trp trr trs trt tru tsc tse tsi tsk tsl tsp tsr tss tst tsu ttc tte tti ttk ttl ttp ttr tts ttt ttu tuc tue tui tuk tul tup tur tus tut tuu ucc uce uci uck ucl ucp ucr ucs uct ucu uec uee uei uel uep uer ues uet uic uie uii uil uip uir uis uit uiu ukc uke uki ukk ukl ukp ukr uku ulc ule uli ulk ull ulp ulr uls ult ulu up- upc upe upi upk upp upr ups upt upu ur- urc ure uri urk url urp urr urs urt uru usc use usi usk usl usp usr uss ust usu utc ute uti utk utl utp utr uts utt utu uuc uue uur uus uut uuu

cccc ccci cccl cccp cccs cccu ccee ccel ccic ccii ccil ccip ccir ccis cclc ccli ccls ccpe ccpl ccpp ccpr ccps ccrc ccre ccri ccrl