-er ddd dde ddh ddi ddp ddr dds de- ded dee deh dei dep der des dh- dhd dhe dhh dhi dhp dhr dhs di- did die dih dii dip dir dis dpd dpe dph dpi dpp dpr dps drd dre dri drp drr drs dsd dse dsh dsi dsp dsr dss ed- edd ede edh edi edp edr eds eed eee eep eer ees ehd ehe ehh ehi ehp ehr ehs eid eie eii eip eir eis ep- epd epe eph epi epp epr eps erd ere erh eri erp err ers es- esd ese esh esi esp esr ess h-i hdd hde hdh hdi hdp hdr hds he- hed hee heh hei hep her hes hhd hhe hhh hhi hhp hhr hhs hid hie hih hii hip hir his hpd hpe hph hpi hpp hpr hps hr- hrd hre hrh hri hrp hrr hrs hsd hse hsh hsi hsp hsr hss i-d idd ide idh idi idp idr ids ie- ied iee iei iep ier ies ihd ihe ihh ihi ihp ihr ihs iid iie iih iii iip iir iis ipd ipe ipi ipp ipr ips ir- ird ire iri irp irr irs is- isd ise ish isi isp isr iss p-p pdd pde pdh pdi pdp pdr pds ped pee peh pei pep per pes phd phe phi php phr phs pid pie pih pii pip pir pis ppd ppe pph ppi ppp ppr pps prd pre prh pri prp prr prs ps- psd pse psh psi psp psr pss rdd rde rdh rdi rdp rdr rds re- red ree reh rei rep rer res rh- rhd rhe rhh rhi rhp rhr rhs rid rie rih rii rip rir ris rpd rpe rph rpi rpp rpr rps rrd rrh rri rrp rrr rrs rsd rse rsh rsi rsp rsr rss sdd sde sdh sdi sdp sdr sds se- sed see seh sei sep ser ses sh- shd she shh shi shp shr shs sid sie sih sii sip sir sis spd spe sph spi spp spr sps sr- srd sre srh sri srp srr srs ss- ssd sse ssh ssi ssp ssr sss