ddd ddf ddi ddo ddp ddr ddt dfd dff dfi dfo dfp dfr dft di- did dif dii dio dip dir dit dod dof doi doo dop dor dot dpd dpf dpi dpo dpp dpr dpt drd dri dro drp drr drt dtd dtf dti dto dtp dtr dtt fdd fdf fdi fdo fdp fdr fdt ffd fff ffi ffo ffp ffr fft fid fif fii fip fir fit fof foi foo fop for fot fpd fpi fpo fpp fpr fpt frd frf fri fro frp frr frt ftd ftf fti fto ftp ftr ftt i-d i-f idd idf idi ido idp idr idt ifd iff ifi ifo ifp ifr ift iid iif iii iio iip iir iit io- iod iof ioi ioo iop ior iot ipd ipf ipi ipo ipp ipr ipt ir- ird irf iri iro irp irr irt itd itf iti ito itp itt o-i odd odf odi odo odp odr odt of- ofd off ofi ofo ofp ofr oft oid oif oii oio oip oir oit oo- ood oof ooi ooo oop oor oot op- opd opf opi opo opp opr opt or- ord orf ori oro orp orr ort ot- otd otf oti oto otp otr ott p-p pdd pdf pdi pdo pdp pdr pdt pfd pff pfi pfo pfp pfr pft pid pif pii pio pip pir pit pod pof poi poo pop por pot ppd ppf ppi ppo ppp ppr ppt prd prf pri pro prp prr prt pt- ptd ptf pti pto ptp ptr ptt rdd rdf rdi rdo rdp rdr rdt rfd rff rfi rfo rfp rfr rft rid rif rii rio rip rir rit rod rof roi roo rop ror rot rpd rpf rpi rpo rpp rpr rpt rrd rrf rri rrp rrr rrt rtd rtf rti rto rtp rtr rtt tdd tdf tdi tdo tdp tdr tdt tfd tff tfi tfo tfp tfr tft tid tif tii tio tip tir tit to- tod tof toi too top tor tot tpd tpf tpi tpo tpp tpr tpt trd trf tri tro trp trr trt ttd ttf tti tto ttp ttr ttt