ddd ddf ddi ddn ddo ddp ddr ddt ddx dfd dff dfi dfn dfo dfp dfr dft dfx di- did dif dii din dio dip dir dit dix dnd dnf dni dnn dno dnp dnr dnt dod dof doi don doo dop dor dot dox dpd dpf dpi dpn dpo dpp dpr dpt drd dri drn dro drp drr drt drx dtd dtf dti dtn dto dtp dtr dtt dtx dxd dxi dxn dxo dxp dxr dxt dxx fdd fdf fdi fdn fdo fdp fdr fdt fdx ffd fff ffi ffn ffo ffp ffr fft ffx fid fif fii fin fip fir fit fix fnd fnf fni fnn fnp fnr fnt fnx fof foi fon foo fop for fot fox fpd fpi fpn fpo fpp fpr fpt fpx frd frf fri frn fro frp frr frt ftd ftf fti ftn fto ftp ftr ftt ftx fxi fxp fxr fxt fxx i-d i-f idd idf idi idn ido idp idr idt idx ifd iff ifi ifn ifo ifp ifr ift ifx iid iif iii iin iio iip iir iit iix in- ind inf ini inn ino inp inr int inx io- iod iof ioi ion ioo iop ior iot ipd ipf ipi ipn ipo ipp ipr ipt ipx ir- ird irf iri irn iro irp irr irt irx itd itf iti itn ito itp itt itx ixi ixn n-i ndd ndf ndi ndn ndo ndp ndr ndt nfd nff nfi nfn nfo nfp nfr nft nid nif nii nin nio nip nir nit nix nnf nni nnn nno nnp nnt no- nod nof noi non noo nop nor not nox npd npf npi npn npo npp npr npt nrd nrf nri nrn nro nrp nrr nrt nrx ntd ntf nti ntn nto ntp ntr ntt ntx nxd nxt o-i odd odf odi odn odo odp odr odt of- ofd off ofi ofn ofo ofp ofr oft ofx oid oif oii oin oio oip oir oit on- ond onf oni onn ono onp onr ont onx oo- ood oof ooi oon ooo oop oor oot oox op- opd opf opi opn opo opp opr opt opx or- ord orf ori orn oro orp orr ort orx ot- otd otf oti otn oto otp otr ott ox- oxf oxi oxn oxo oxt oxx p-p pdd pdf pdi pdn pdo pdp pdr pdt pdx pfd pff pfi pfn pfo pfp pfr pft pfx pid pif pii pin pio pip pir pit pix pn- pnd pnf pni pnn pno pnp pnr pnt pnx pod pof poi pon poo pop por pot pox ppd ppf ppi ppn ppo ppp ppr ppt ppx prd prf pri prn pro prp prr prt prx pt- ptd ptf pti ptn pto ptp ptr ptt ptx pxr pxt rdd rdf rdi rdn rdo rdp rdr rdt rdx rfd rff rfi rfn rfo rfp rfr rft rid rif rii rin rio rip rir rit rix rnd rni rnn rno rnp rnr rnt rod rof roi ron roo rop ror rot rox rpd rpf rpi rpn rpo rpp rpr rpt rpx rrd rrf rri rrn rrp rrr rrt rtd rtf rti rtn rto rtp rtr rtt rtx rxp rxr t-x tdd tdf tdi tdn tdo tdp tdr tdt tdx tfd tff tfi tfn tfo tfp tfr tft tfx tid tif tii tin tio tip tir tit tix tnd tnf tni tnn tno tnp tnr tnt tnx to- tod tof toi ton too top tor tot tox tpd tpf tpi tpn tpo tpp tpr tpt tpx trd trf tri trn tro trp trr trt trx ttd ttf tti ttn tto ttp ttr ttt ttx txf txi txn txt xdf xdi xdr xdt xfn xft xfx xii xin xio xit xix xno xod xof xoi xon xoo xop xor xot xox xpd xpf xpn xpo xpp xpt xrd xrf xrt xrx xtf xti xtp xtr xtx xxi xxo xxp xxx