-er ddd dde ddf ddi ddl ddr ddt de- ded dee def dei del der det dfd dfe dff dfi dfl dfr dft di- did die dif dii dil dir dit dl- dld dle dlf dli dll dlr dlt drd dre dri drl drr drt dtd dte dtf dti dtl dtr dtt ed- edd ede edf edi edl edr edt eed eee eef eel eer eet ef- efd efe eff efi efl efr eft eid eie eif eii eil eir eit eld ele elf eli ell elr elt erd ere erf eri erl err ert etd ete etf eti etl etr ett fdd fde fdf fdi fdl fdr fdt fed fee fef fei fel fer fet ffd ffe fff ffi ffl ffr fft fid fie fif fii fil fir fit fld fle flf fli fll flr flt frd fre frf fri frl frr frt ftd fte ftf fti ftl ftr ftt i-d i-f idd ide idf idi idl idr idt ie- ied iee ief iei iel ier iet ifd ife iff ifi ifl ifr ift iid iie iif iii iil iir iit il- ild ile ilf ili ill ilr ilt ir- ird ire irf iri irl irr irt itd ite itf iti itl itt ldd lde ldf ldi ldl ldr ldt led lee lef lei lel ler let lfd lfe lff lfi lfl lfr lft lid lie lif lii lil lir lit lld lle llf lli lll llr llt lrd lrf lri lrr lrt ltd lte ltf lti ltl ltr ltt rdd rde rdf rdi rdl rdr rdt re- red ree ref rei rel rer ret rfd rfe rff rfi rfl rfr rft rid rie rif rii ril rir rit rld rle rlf rli rll rlr rlt rrd rrf rri rrl rrr rrt rtd rte rtf rti rtl rtr rtt tdd tde tdf tdi tdl tdr tdt te- ted tee tef tei tel ter tet tfd tfe tff tfi tfl tfr tft tid tie tif tii til tir tit tld tle tlf tli tll tlr tlt trd tre trf tri trl trr trt ttd tte ttf tti ttl ttr ttt