-er -ic c-- ccc ccd cce cci cck ccl ccm ccr ccu cdc cdd cde cdi cdk cdl cdm cdr cdu ce- cec ced cee cei cek cel cem cer ceu ci- cic cid cie cii cik cil cim cir ciu ckc ckd cki ckm cl- clc cld cle cli clk cll clm clr clu cmc cmd cme cmi cmk cml cmm cmr cmu crc crd cre cri crk crl crm crr cru cuc cud cue cui cuk cul cum cur cuu dcc dcd dce dci dck dcl dcm dcr dcu ddc ddd dde ddi ddk ddl ddm ddr ddu de- dec ded dee dei dek del dem der deu di- dic did die dii dik dil dim dir diu dkc dke dki dkk dkl dkm dkr dku dl- dlc dld dle dli dlk dll dlm dlr dlu dmc dmd dme dmi dmk dml dmm dmr dmu drc drd dre dri drk drl drm drr dru duc dud due dui duk dul dum dur ec- ecc ecd ece eci eck ecl ecm ecr ecu ed- edc edd ede edi edk edl edm edr edu eec eed eee eek eel eem eer eic eid eie eii eik eil eim eir eiu ekc ekd eke eki ekl ekr eku elc eld ele eli elk ell elm elr elu em- emc emd eme emi emk eml emm emr emu erc erd ere eri erk erl erm err eru eu- euc eud eue eui eul eur i-d icc icd ice ici ick icl icm icr icu idc idd ide idi idk idl idm idr idu ie- iec ied iee iei iek iel iem ier iic iid iie iii iil iim iir iiu ikc ike iki ikk ikl ikr iku il- ilc ild ile ili ilk ill ilm ilr ilu im- imc imd ime imi iml imm imu ir- irc ird ire iri irk irl irm irr iru iu- iuc iud iue iui ium iur kcc kcd kce kci kck kcl kcm kcr kcu kdc kde kdk kdl kdm kdr kdu ke- kec ked kee kei kek kel kem ker kic kid kie kii kik kil kim kir kiu kkc kke kki kkk kkl kkm kkr kku kl- klc kld kli klm klr klu kmc kmd kme kmi kmk kml kmm kmu krc krd kri krk krl krr kru kuc kud kue kui kuk kul kum kur kuu lcc lcd lce lci lck lcl lcm lcr lcu ldc ldd lde ldi ldk ldl ldm ldr ldu lec led lee lei lek lel lem ler leu lic lid lie lii lik lil lim lir liu lkl lkr llc lld lle lli llk lll llm llr llu lmc lmd lme lmi lmk lml lmm lmr lmu lrc lrd lri lrk lrm lrr lru luc lud lue lui luk lul lum lur luu m-r mc- mcc mcd mce mci mck mcl mcm mcr mcu mdc mdd mde mdi mdk mdl mdm mdr mdu mec med mee mei mek mel mem mer meu mi- mic mid mie mii mik mil mim mir miu mkc mkd mke mkk mkl mkm mkr mku mlc mld mle mli mlk mll mlm mlr mlu mmc mmd mme mmi mmk mml mmm mmr mmu mrc mrd mre mri mrk mrl mrm mrr mru muc mud mue mui muk mul mum mur muu rcc rcd rce rci rcl rcm rcr rcu rdc rdd rde rdi rdl rdm rdr rdu re- rec red ree rei rek rel rem rer reu ric rid rie rii rik ril rim rir rkc rke rkk rkm rku rlc rld rle rli rll rlm rlr rlu rmc rmd rme rmi rml rmm rmr rrc rrd rri rrk rrl rrm rrr rru ruc rud rue rui ruk rum rur ruu ucc ucd uce uci uck ucl ucm ucr ucu udc udd ude udi udk udl udm udr udu uec ued uee uei uel uem uer uic uid uie uii uil uim uir uiu ukc uke uki ukk ukl ukr uku ulc uld ule uli ulk ull ulm ulr ulu um- umc umd ume umi uml umm umr umu ur- urc urd ure uri urk url urm urr uru uuc uue uum uur uuu