-er -ic c-- ccc ccd cce ccf cch cci cck ccr cdc cdd cde cdf cdh cdi cdk cdr ce- cec ced cee cef ceh cei cek cer cfc cfd cfe cff cfh cfi cfk cfr ch- chc chd che chf chh chi chk chr ci- cic cid cie cif cih cii cik cir ckc ckd ckh cki crc crd cre crf crh cri crk crr dcc dcd dce dcf dci dck dcr ddc ddd dde ddf ddh ddi ddk ddr de- dec ded dee def deh dei dek der dfc dfd dfe dff dfh dfi dfk dfr dh- dhc dhd dhe dhf dhh dhi dhk dhr di- dic did die dif dih dii dik dir dkc dke dki dkk dkr drc drd dre dri drk drr ec- ecc ecd ece ecf ech eci eck ecr ed- edc edd ede edf edh edi edk edr eec eed eee eef eek eer ef- efc efd efe eff efh efi efr ehc ehd ehe ehf ehh ehi ehr eic eid eie eif eii eik eir ekc ekd eke ekf ekh eki ekr erc erd ere erf erh eri erk err fcc fcd fce fcf fci fck fcr fdc fdd fde fdf fdh fdi fdk fdr fec fed fee fef feh fei fek fer ffc ffd ffe fff ffh ffi ffk ffr fhc fhe fhf fhh fhi fhr fic fid fie fif fih fii fik fir fkc fkf fki fkk frc frd fre frf frh fri frk frr h-i hcc hcd hce hcf hch hci hck hcr hdc hdd hde hdf hdh hdi hdk hdr he- hec hed hee hef heh hei hek her hfc hfd hfe hff hfh hfi hfk hfr hhc hhd hhe hhf hhh hhi hhk hhr hic hid hie hif hih hii hik hir hkd hkf hkh hki hkk hkr hr- hrc hrd hre hrf hrh hri hrk hrr i-d i-f icc icd ice icf ich ici ick icr idc idd ide idf idh idi idk idr ie- iec ied iee ief iei iek ier ifc ifd ife iff ifi ifr ihc ihd ihe ihf ihh ihi ihk ihr iic iid iie iif iih iii iir ikc ike ikf iki ikk ikr ir- irc ird ire irf iri irk irr kcc kcd kce kch kci kck kcr kdc kde kdf kdh kdk kdr ke- kec ked kee kef keh kei kek ker kfc kfd kff kfh kfi khe khf khh khi khk khr kic kid kie kif kih kii kik kir kkc kke kkh kki kkk kkr krc krd krf kri krk krr rcc rcd rce rcf rch rci rcr rdc rdd rde rdf rdh rdi rdr re- rec red ree ref reh rei rek rer rfc rfd rfe rff rfh rfi rfk rfr rh- rhc rhd rhe rhf rhh rhi rhr ric rid rie rif rih rii rik rir rkc rke rkf rkk rrc rrd rrf rrh rri rrk rrr