-er -ic c-- ccc ccd cce cch cci ccr cdc cdd cde cdh cdi cdr ce- cec ced cee ceh cei cer ch- chc chd che chh chi chr ci- cic cid cie cih cii cir crc crd cre crh cri crr dcc dcd dce dci dcr ddc ddd dde ddh ddi ddr de- dec ded dee deh dei der dh- dhc dhd dhe dhh dhi dhr di- dic did die dih dii dir drc drd dre dri drr ec- ecc ecd ece ech eci ecr ed- edc edd ede edh edi edr eec eed eee eer ehc ehd ehe ehh ehi ehr eic eid eie eii eir erc erd ere erh eri err h-i hcc hcd hce hch hci hcr hdc hdd hde hdh hdi hdr he- hec hed hee heh hei her hhc hhd hhe hhh hhi hhr hic hid hie hih hii hir hr- hrc hrd hre hrh hri hrr i-d icc icd ice ich ici icr idc idd ide idh idi idr ie- iec ied iee iei ier ihc ihd ihe ihh ihi ihr iic iid iie iih iii iir ir- irc ird ire iri irr rcc rcd rce rch rci rcr rdc rdd rde rdh rdi rdr re- rec red ree reh rei rer rh- rhc rhd rhe rhh rhi rhr ric rid rie rih rii rir rrc rrd rrh rri rrr