-er -ic -up c-- ccc cce ccf cci ccl ccp ccr ccs ccu ce- cec cee cef cei cel cep cer ces ceu cfc cfe cff cfi cfl cfp cfr cfs cfu ci- cic cie cif cii cil cip cir cis ciu cl- clc cle clf cli cll clp clr cls clu cpc cpe cpf cpi cpl cpp cpr cps cpu crc cre crf cri crl crp crr crs cru csc cse csf csi csl csp csr css csu cuc cue cuf cui cul cup cur cus cuu ec- ecc ece ecf eci ecl ecr ecs ecu eec eee eef eel eep eer ees ef- efc efe eff efi efl efp efr efs eic eie eif eii eil eip eir eis eiu elc ele elf eli ell elp elr els elu ep- epc epe epf epi epl epp epr eps epu erc ere erf eri erl erp err ers eru es- esc ese esf esi esl esp esr ess esu eu- euc eue euf eui eul eup eur eus fcc fce fcf fci fcl fcp fcr fcs fcu fec fee fef fei fel fep fer fes feu ffc ffe fff ffi ffl ffp ffr ffs ffu fic fie fif fii fil fip fir fis fiu flc fle flf fli fll flp flr fls flu fpc fpe fpi fpl fpp fpr fps fpu frc fre frf fri frl frp frr frs fru fsc fse fsf fsi fsl fsp fsr fss fsu fue fuf fui ful fup fur fus fuu i-f icc ice icf ici icl icp icr ics icu ie- iec iee ief iei iel iep ier ies ifc ife iff ifi ifl ifp ifr ifs ifu iic iie iif iii iil iip iir iis iiu il- ilc ile ilf ili ill ilp ilr ils ilu ipc ipe ipf ipi ipl ipp ipr ips ipu ir- irc ire irf iri irl irp irr irs iru is- isc ise isf isi isl isp isr iss isu iu- iuc iue iui iup iur ius l-p lcc lce lcf lci lcl lcp lcr lcs lcu lec lee lef lei lel lep ler les leu lfc lfe lff lfi lfl lfp lfr lfs lfu lic lie lif lii lil lip lir lis liu llc lle llf lli lll llp llr lls llu lpc lpe lpf lpi lpl lpp lpr lps lpu lrc lrf lri lrp lrr lrs lru lsc lse lsf lsi lsl lsp lsr lss lsu luc lue luf lui lul lup lur lus luu p-p pcc pce pcf pci pcl pcp pcr pcs pcu pec pee pef pei pel pep per pes peu pfc pfe pff pfi pfl pfp pfr pfs pfu pic pie pif pii pil pip pir pis piu plc ple plf pli pll plp plr pls plu ppc ppe ppf ppi ppl ppp ppr pps ppu prc pre prf pri prl prp prr prs pru ps- psc pse psf psi psl psp psr pss psu puc pue puf pui pul pup pur pus puu rcc rce rcf rci rcl rcp rcr rcs rcu re- rec ree ref rei rel rep rer res reu rfc rfe rff rfi rfl rfp rfr rfs rfu ric rie rif rii ril rip rir ris rlc rle rlf rli rll rlp rlr rls rlu rpc rpe rpf rpi rpl rpp rpr rps rpu rrc rrf rri rrl rrp rrr rrs rru rsc rse rsf rsi rsl rsp rsr rss rsu ruc rue ruf rui rup rur rus ruu scc sce scf sci scl scp scr scs scu se- sec see sef sei sel sep ser ses seu sfc sfe sff sfi sfl sfp sfr sfs sfu sic sie sif sii sil sip sir sis siu slc sle slf sli sll slp slr sls slu spc spe spf spi spl spp spr sps spu sr- src sre srf sri srl srp srr srs ss- ssc sse ssf ssi ssl ssp ssr sss ssu suc sue suf sui sul sup sur sus suu ucc uce ucf uci ucl ucp ucr ucs ucu uec uee uef uei uel uep uer ues ufc ufe uff ufi ufl ufp ufr ufs ufu uic uie uif uii uil uip uir uis uiu ulc ule ulf uli ull ulp ulr uls ulu up- upc upe upf upi upp upr ups upu ur- urc ure urf uri url urp urr urs uru usc use usf usi usl usp usr uss usu uuc uue uur uus uuu