-er -ic c-- ccc cce cch cci cco ccr ce- cec cee ceh cei ceo cer ch- chc che chh chi cho chr ci- cic cie cih cii cio cir co- coc coe coh coi coo cor crc cre crh cri cro crr ec- ecc ece ech eci eco ecr eec eee eeo eer ehc ehe ehh ehi eho ehr eic eie eii eio eir eo- eoc eoe eoh eoi eoo eor erc ere erh eri ero err h-i hcc hce hch hci hco hcr he- hec hee heh hei heo her hhc hhe hhh hhi hho hhr hic hie hih hii hio hir hoc hoe hoh hoi hoo hor hr- hrc hre hrh hri hro hrr icc ice ich ici ico icr ie- iec iee iei ier ihc ihe ihh ihi iho ihr iic iie iih iii iio iir io- ioc ioe ioh ioi ioo ior ir- irc ire iri iro irr o-i oc- occ och oci oco ocr oec oee oeh oei oeo oer ohc ohe ohh ohi oho ohr oic oie oii oio oir oo- ooc ooh ooi ooo oor or- orc ore orh ori oro orr rcc rce rch rci rco rcr re- rec ree reh rei reo rer rh- rhc rhe rhh rhi rho rhr ric rie rih rii rio rir roc roe roh roi roo ror rrc rrh rri rrr