-er ddd dde ddh ddi ddo ddr de- ded dee deh dei deo der dh- dhd dhe dhh dhi dho dhr di- did die dih dii dio dir dod doe doh doi doo dor drd dre dri dro drr ed- edd ede edh edi edo edr eed eee eeo eer ehd ehe ehh ehi eho ehr eid eie eii eio eir eo- eod eoe eoh eoi eoo eor erd ere erh eri ero err h-i hdd hde hdh hdi hdo hdr he- hed hee heh hei heo her hhd hhe hhh hhi hho hhr hid hie hih hii hio hir hod hoe hoh hoi hoo hor hr- hrd hre hrh hri hro hrr i-d idd ide idh idi ido idr ie- ied iee iei ier ihd ihe ihh ihi iho ihr iid iie iih iii iio iir io- iod ioe ioh ioi ioo ior ir- ird ire iri iro irr o-i odd ode odh odi odo odr oed oee oeh oei oeo oer ohd ohe ohh ohi oho ohr oid oie oii oio oir oo- ood ooh ooi ooo oor or- ord ore orh ori oro orr rdd rde rdh rdi rdo rdr re- red ree reh rei reo rer rh- rhd rhe rhh rhi rho rhr rid rie rih rii rio rir rod roe roh roi roo ror rrd rrh rri rrr