-er ddd dde ddf ddi ddr ddt ddz de- ded dee def dei der det dez dfd dfe dff dfi dfr dft dfz di- did die dif dii dir dit diz drd dre dri drr drt drz dtd dte dtf dti dtr dtt dtz dzd dze dzi dzr ed- edd ede edf edi edr edt eed eee eef eer eet ef- efd efe eff efi efr eft eid eie eif eii eir eit erd ere erf eri err ert erz etd ete etf eti etr ett etz eze ezf ezr ezz fdd fde fdf fdi fdr fdt fed fee fef fei fer fet fez ffd ffe fff ffi ffr fft ffz fid fie fif fii fir fit fiz frd fre frf fri frr frt ftd fte ftf fti ftr ftt ftz fzd i-d i-f idd ide idf idi idr idt ie- ied iee ief iei ier iet ifd ife iff ifi ifr ift ifz iid iie iif iii iir iit ir- ird ire irf iri irr irt itd ite itf iti itt itz ize izi izz rdd rde rdf rdi rdr rdt re- red ree ref rei rer ret rez rfd rfe rff rfi rfr rft rfz rid rie rif rii rir rit riz rrd rrf rri rrr rrt rtd rte rtf rti rtr rtt rtz rze tdd tde tdf tdi tdr tdt te- ted tee tef tei ter tet tez tfd tfe tff tfi tfr tft tid tie tif tii tir tit tiz trd tre trf tri trr trt trz ttd tte ttf tti ttr ttt tzd tze tzf zdf zdt zed zee zef zer zet zez zfd zfr zid zie zif zir zit ziz zte ztr zzr zzt zzz