-er -ic c-- ccc ccd cce cci cck ccn ccr ccu cdc cdd cde cdi cdk cdn cdr cdu ce- cec ced cee cei cek cen cer ceu ci- cic cid cie cii cik cin cir ciu ckc ckd cki cn- cnc cnd cne cni cnn cnr cnu crc crd cre cri crk crn crr cru cuc cud cue cui cuk cun cur cuu dcc dcd dce dci dck dcn dcr dcu ddc ddd dde ddi ddk ddn ddr ddu de- dec ded dee dei dek den der deu di- dic did die dii dik din dir diu dkc dke dki dkk dkr dku dnc dnd dne dni dnk dnn dnr drc drd dre dri drk drn drr dru duc dud due dui duk dun dur ec- ecc ecd ece eci eck ecn ecr ecu ed- edc edd ede edi edk edn edr edu eec eed eee eek een eer eic eid eie eii eik ein eir eiu ekc ekd eke eki ekr eku en- enc end ene eni enk enn enr enu erc erd ere eri erk ern err eru eu- euc eud eue eui eun eur i-d icc icd ice ici ick icn icr icu idc idd ide idi idk idn idr idu ie- iec ied iee iei iek ien ier iic iid iie iii iin iir iiu ikc ike iki ikk ikr iku in- inc ind ine ini ink inn inr inu ir- irc ird ire iri irk irn irr iru iu- iuc iud iue iui iur kcc kcd kce kci kck kcn kcr kcu kdc kde kdk kdr kdu ke- kec ked kee kei kek ken ker kic kid kie kii kik kin kir kiu kkc kke kki kkk kkn kkr kku kn- knc knd kne kni knk knn knr knu krc krd kri krk krn krr kru kuc kud kue kui kuk kun kur kuu n-i ncc ncd nce nci nck ncn ncr ncu ndc ndd nde ndi ndk ndn ndr ndu ne- nec ned nee nei nek nen ner neu nic nid nie nii nik nin nir niu nkc nke nki nkk nkn nkr nku nnc nne nni nnk nnn nnu nrc nrd nre nri nrk nrn nrr nru nuc nud nue nui nuk nun nur nuu rcc rcd rce rci rcn rcr rcu rdc rdd rde rdi rdn rdr rdu re- rec red ree rei rek ren rer reu ric rid rie rii rik rin rir rkc rke rkk rku rnc rnd rni rnn rnr rnu rrc rrd rri rrk rrn rrr rru ruc rud rue rui ruk run rur ruu ucc ucd uce uci uck ucn ucr ucu udc udd ude udi udk udn udr udu uec ued uee uei uen uer uic uid uie uii uin uir uiu ukc uke uki ukk ukn ukr uku un- unc und une uni unk unn unr unu ur- urc urd ure uri urk urn urr uru uuc uue uun uur uuu