-er -ey -ic c-- ccc cce cch cci cco ccr ce- cec cee ceh cei ceo cer cey ch- chc che chh chi cho chr chy ci- cic cie cih cii cio cir co- coc coe coh coi coo cor coy crc cre crh cri cro crr cry cyc cye cyo cyr ec- ecc ece ech eci eco ecr eec eee eeo eer eey ehc ehe ehh ehi eho ehr eic eie eii eio eir eo- eoc eoe eoh eoi eoo eor erc ere erh eri ero err ery eyc eye eyo eyr h-i hcc hce hch hci hco hcr hcy he- hec hee heh hei heo her hey hhc hhe hhh hhi hho hhr hhy hic hie hih hii hio hir hoc hoe hoh hoi hoo hor hoy hr- hrc hre hrh hri hro hrr hy- hyc hye hyh hyi hyo hyr hyy icc ice ich ici ico icr icy ie- iec iee iei ier iey ihc ihe ihh ihi iho ihr ihy iic iie iih iii iio iir io- ioc ioe ioh ioi ioo ior ir- irc ire iri iro irr iry iyc iye iyo iyr iyy o-i oc- occ och oci oco ocr oec oee oeh oei oeo oer oey ohc ohe ohh ohi oho ohr oic oie oii oio oir oo- ooc ooh ooi ooo oor or- orc ore orh ori oro orr ory oye oyi oyo rcc rce rch rci rco rcr re- rec ree reh rei reo rer rey rh- rhc rhe rhh rhi rho rhr ric rie rih rii rio rir riy roc roe roh roi roo ror roy rrc rrh rri rrr ry- ryc rye ryo ryr ryy ycc yce ych yci yco ycy yec yee yeh yei yeo yer yey yhc yhe yhi yie yih yii yio yir yoc yoe yoi yoo yor yoy yrc yre yro yyc yye yyy