-er -ic c-- ccc ccd cce cch cci cco ccr cdc cdd cde cdh cdi cdo cdr ce- cec ced cee ceh cei ceo cer ch- chc chd che chh chi cho chr ci- cic cid cie cih cii cio cir co- coc cod coe coh coi coo cor crc crd cre crh cri cro crr dcc dcd dce dci dco dcr ddc ddd dde ddh ddi ddo ddr de- dec ded dee deh dei deo der dh- dhc dhd dhe dhh dhi dho dhr di- dic did die dih dii dio dir doc dod doe doh doi doo dor drc drd dre dri dro drr ec- ecc ecd ece ech eci eco ecr ed- edc edd ede edh edi edo edr eec eed eee eeo eer ehc ehd ehe ehh ehi eho ehr eic eid eie eii eio eir eo- eoc eod eoe eoh eoi eoo eor erc erd ere erh eri ero err h-i hcc hcd hce hch hci hco hcr hdc hdd hde hdh hdi hdo hdr he- hec hed hee heh hei heo her hhc hhd hhe hhh hhi hho hhr hic hid hie hih hii hio hir hoc hod hoe hoh hoi hoo hor hr- hrc hrd hre hrh hri hro hrr i-d icc icd ice ich ici ico icr idc idd ide idh idi ido idr ie- iec ied iee iei ier ihc ihd ihe ihh ihi iho ihr iic iid iie iih iii iio iir io- ioc iod ioe ioh ioi ioo ior ir- irc ird ire iri iro irr o-i oc- occ ocd och oci oco ocr odc odd ode odh odi odo odr oec oed oee oeh oei oeo oer ohc ohd ohe ohh ohi oho ohr oic oid oie oii oio oir oo- ooc ood ooh ooi ooo oor or- orc ord ore orh ori oro orr rcc rcd rce rch rci rco rcr rdc rdd rde rdh rdi rdo rdr re- rec red ree reh rei reo rer rh- rhc rhd rhe rhh rhi rho rhr ric rid rie rih rii rio rir roc rod roe roh roi roo ror rrc rrd rrh rri rrr