-er -ic -up c-- ccc ccd cce cci cck ccp ccr ccs ccu cdc cdd cde cdi cdk cdp cdr cds cdu ce- cec ced cee cei cek cep cer ces ceu ci- cic cid cie cii cik cip cir cis ciu ckc ckd cki cks cpc cpd cpe cpi cpk cpp cpr cps cpu crc crd cre cri crk crp crr crs cru csc csd cse csi csk csp csr css csu cuc cud cue cui cuk cup cur cus cuu dcc dcd dce dci dck dcp dcr dcs dcu ddc ddd dde ddi ddk ddp ddr dds ddu de- dec ded dee dei dek dep der des deu di- dic did die dii dik dip dir dis diu dkc dke dki dkk dkp dkr dks dku dpc dpd dpe dpi dpk dpp dpr dps dpu drc drd dre dri drk drp drr drs dru dsc dsd dse dsi dsk dsp dsr dss dsu duc dud due dui duk dup dur dus ec- ecc ecd ece eci eck ecr ecs ecu ed- edc edd ede edi edk edp edr eds edu eec eed eee eek eep eer ees eic eid eie eii eik eip eir eis eiu ekc ekd eke eki ekp ekr eks eku ep- epc epd epe epi epp epr eps epu erc erd ere eri erk erp err ers eru es- esc esd ese esi esk esp esr ess esu eu- euc eud eue eui eup eur eus i-d icc icd ice ici ick icp icr ics icu idc idd ide idi idk idp idr ids idu ie- iec ied iee iei iek iep ier ies iic iid iie iii iip iir iis iiu ikc ike iki ikk ikr iks iku ipc ipd ipe ipi ipp ipr ips ipu ir- irc ird ire iri irk irp irr irs iru is- isc isd ise isi isk isp isr iss isu iu- iuc iud iue iui iup iur ius kcc kcd kce kci kck kcp kcr kcs kcu kdc kde kdk kdp kdr kds kdu ke- kec ked kee kei kek kep ker kes kic kid kie kii kik kip kir kis kiu kkc kke kki kkk kkp kkr kks kku kpc kpd kpe kpi kpk kpp kpr kps kpu krc krd kri krk krp krr krs kru ksc ksd kse ksi ksk ksp ksr kss ksu kuc kud kue kui kuk kup kur kus kuu p-p pcc pcd pce pci pck pcp pcr pcs pcu pdc pdd pde pdi pdk pdp pdr pds pdu pec ped pee pei pek pep per pes peu pic pid pie pii pik pip pir pis piu pkc pkd pke pki pkp pkr pks pku ppc ppd ppe ppi ppk ppp ppr pps ppu prc prd pre pri prk prp prr prs pru ps- psc psd pse psi psk psp psr pss psu puc pud pue pui puk pup pur pus puu rcc rcd rce rci rcp rcr rcs rcu rdc rdd rde rdi rdp rdr rds rdu re- rec red ree rei rek rep rer res reu ric rid rie rii rik rip rir ris rkc rke rkk rkp rks rku rpc rpd rpe rpi rpk rpp rpr rps rpu rrc rrd rri rrk rrp rrr rrs rru rsc rsd rse rsi rsk rsp rsr rss rsu ruc rud rue rui ruk rup rur rus ruu scc scd sce sci sck scp scr scs scu sdc sdd sde sdi sdk sdp sdr sds sdu se- sec sed see sei sek sep ser ses seu sic sid sie sii sik sip sir sis siu sk- skc skd ske ski skk skp skr sks sku spc spd spe spi spk spp spr sps spu sr- src srd sre sri srk srp srr srs ss- ssc ssd sse ssi ssk ssp ssr sss ssu suc sud sue sui suk sup sur sus suu ucc ucd uce uci uck ucp ucr ucs ucu udc udd ude udi udk udp udr uds udu uec ued uee uei uep uer ues uic uid uie uii uip uir uis uiu ukc uke uki ukk ukp ukr uku up- upc upd upe upi upk upp upr ups upu ur- urc urd ure uri urk urp urr urs uru usc usd use usi usk usp usr uss usu uuc uue uur uus uuu