-er -ic c-- ccc ccd cce cch cci cck ccr ccs cdc cdd cde cdh cdi cdk cdr cds ce- cec ced cee ceh cei cek cer ces ch- chc chd che chh chi chk chr chs ci- cic cid cie cih cii cik cir cis ckc ckd ckh cki cks crc crd cre crh cri crk crr crs csc csd cse csh csi csk csr css dcc dcd dce dci dck dcr dcs ddc ddd dde ddh ddi ddk ddr dds de- dec ded dee deh dei dek der des dh- dhc dhd dhe dhh dhi dhk dhr dhs di- dic did die dih dii dik dir dis dkc dke dki dkk dkr dks drc drd dre dri drk drr drs dsc dsd dse dsh dsi dsk dsr dss ec- ecc ecd ece ech eci eck ecr ecs ed- edc edd ede edh edi edk edr eds eec eed eee eek eer ees ehc ehd ehe ehh ehi ehr ehs eic eid eie eii eik eir eis ekc ekd eke ekh eki ekr eks erc erd ere erh eri erk err ers es- esc esd ese esh esi esk esr ess h-i hcc hcd hce hch hci hck hcr hcs hdc hdd hde hdh hdi hdk hdr hds he- hec hed hee heh hei hek her hes hhc hhd hhe hhh hhi hhk hhr hhs hic hid hie hih hii hik hir his hkd hkh hki hkk hkr hks hr- hrc hrd hre hrh hri hrk hrr hrs hsc hsd hse hsh hsi hsk hsr hss i-d icc icd ice ich ici ick icr ics idc idd ide idh idi idk idr ids ie- iec ied iee iei iek ier ies ihc ihd ihe ihh ihi ihk ihr ihs iic iid iie iih iii iir iis ikc ike iki ikk ikr iks ir- irc ird ire iri irk irr irs is- isc isd ise ish isi isk isr iss kcc kcd kce kch kci kck kcr kcs kdc kde kdh kdk kdr kds ke- kec ked kee keh kei kek ker kes khe khh khi khk khr khs kic kid kie kih kii kik kir kis kkc kke kkh kki kkk kkr kks krc krd kri krk krr krs ksc ksd kse ksh ksi ksk ksr kss rcc rcd rce rch rci rcr rcs rdc rdd rde rdh rdi rdr rds re- rec red ree reh rei rek rer res rh- rhc rhd rhe rhh rhi rhr rhs ric rid rie rih rii rik rir ris rkc rke rkk rks rrc rrd rrh rri rrk rrr rrs rsc rsd rse rsh rsi rsk rsr rss scc scd sce sch sci sck scr scs sdc sdd sde sdh sdi sdk sdr sds se- sec sed see seh sei sek ser ses sh- shc shd she shh shi shk shr shs sic sid sie sih sii sik sir sis sk- skc skd ske skh ski skk skr sks sr- src srd sre srh sri srk srr srs ss- ssc ssd sse ssh ssi ssk ssr sss