-er ddd dde ddi ddl ddp ddr ddt de- ded dee dei del dep der det di- did die dii dil dip dir dit dl- dld dle dli dll dlp dlr dlt dpd dpe dpi dpl dpp dpr dpt drd dre dri drl drp drr drt dtd dte dti dtl dtp dtr dtt ed- edd ede edi edl edp edr edt eed eee eel eep eer eet eid eie eii eil eip eir eit eld ele eli ell elp elr elt ep- epd epe epi epl epp epr ept erd ere eri erl erp err ert etd ete eti etl etp etr ett i-d idd ide idi idl idp idr idt ie- ied iee iei iel iep ier iet iid iie iii iil iip iir iit il- ild ile ili ill ilp ilr ilt ipd ipe ipi ipl ipp ipr ipt ir- ird ire iri irl irp irr irt itd ite iti itl itp itt l-p ldd lde ldi ldl ldp ldr ldt led lee lei lel lep ler let lid lie lii lil lip lir lit lld lle lli lll llp llr llt lpd lpe lpi lpl lpp lpr lpt lrd lri lrp lrr lrt ltd lte lti ltl ltp ltr ltt p-p pdd pde pdi pdl pdp pdr pdt ped pee pei pel pep per pet pid pie pii pil pip pir pit pld ple pli pll plp plr plt ppd ppe ppi ppl ppp ppr ppt prd pre pri prl prp prr prt pt- ptd pte pti ptl ptp ptr ptt rdd rde rdi rdl rdp rdr rdt re- red ree rei rel rep rer ret rid rie rii ril rip rir rit rld rle rli rll rlp rlr rlt rpd rpe rpi rpl rpp rpr rpt rrd rri rrl rrp rrr rrt rtd rte rti rtl rtp rtr rtt tdd tde tdi tdl tdp tdr tdt te- ted tee tei tel tep ter tet tid tie tii til tip tir tit tld tle tli tll tlp tlr tlt tpd tpe tpi tpl tpp tpr tpt trd tre tri trl trp trr trt ttd tte tti ttl ttp ttr ttt