fff ffg ffi ffn ffo ffr fft ffx fgf fgg fgi fgn fgr fgt fif fig fii fin fir fit fix fnf fng fni fnn fnr fnt fnx fof fog foi fon foo for fot fox frf frg fri frn fro frr frt ftf ftg fti ftn fto ftr ftt ftx fxg fxi fxr fxt fxx gff gfi gfo gfr gft gfx ggg ggi ggn ggo ggr ggt gif gig gii gin gio gir git gnf gni gnn gno gnr gnt gof gog goi gon goo gor got gox grf grg gri grn gro grr grt grx gtf gtg gti gtn gto gtr gtt gtx gxf gxt i-f iff ifg ifi ifn ifo ifr ift ifx igf igg igi ign igo igr igt iif iii iin iio iir iit iix in- inf ing ini inn ino inr int inx io- iof iog ioi ion ioo ior iot ir- irf irg iri irn iro irr irt irx itf itg iti itn ito itt itx ixi ixn n-i nff nfi nfn nfo nfr nft ngf ngg ngi ngn ngo ngt nif nig nii nin nio nir nit nix nnf nng nni nnn nno nnt no- nof nog noi non noo nor not nox nrf nrg nri nrn nro nrr nrt nrx ntf ntg nti ntn nto ntr ntt ntx nxt o-i of- off ofg ofi ofn ofo ofr oft ofx ogf ogg ogi ogn ogo ogt ogx oif oii oin oio oir oit on- onf ong oni onn ono onr ont onx oo- oof oog ooi oon ooo oor oot oox or- orf org ori orn oro orr ort orx ot- otf otg oti otn oto otr ott ox- oxf oxi oxn oxo oxt oxx rff rfg rfi rfn rfo rfr rft rgf rgg rgi rgn rgo rgr rgt rgx rif rig rii rin rio rir rit rix rng rni rnn rno rnr rnt rof rog roi ron roo ror rot rox rrf rrg rri rrn rrr rrt rtf rtg rti rtn rto rtr rtt rtx rxr t-x tff tfg tfi tfn tfo tfr tft tfx tgf tgg tgi tgn tgo tgr tgt tif tig tii tin tio tir tit tix tnf tng tni tnn tno tnr tnt tnx to- tof tog toi ton too tor tot tox trf trg tri trn tro trr trt trx ttf ttg tti ttn tto ttr ttt ttx txf txi txn txt xfn xft xfx xgi xii xin xio xit xix xno xof xog xoi xon xoo xor xot xox xrf xrt xrx xtf xti xtr xtx xxi xxo xxx