fff ffi ffl ffn ffr ffu ffx fif fii fil fin fir fiu fix flf fli fll fln flr flu flx fnf fni fnl fnn fnr fnu fnx frf fri frl frn frr fru fuf fui ful fun fur fuu fux fxi fxr fxu fxx i-f iff ifi ifl ifn ifr ifu ifx iif iii iil iin iir iiu iix il- ilf ili ill iln ilr ilu ilx in- inf ini inl inn inr inu inx ir- irf iri irl irn irr iru irx iu- iui iur ixi ixl ixn lff lfi lfl lfn lfr lfu lfx lif lii lil lin lir liu lix llf lli lll lln llr llu lni lnl lnn lnr lnu lrf lri lrn lrr lru luf lui lul lun lur luu lux lxi lxr lxx n-i nff nfi nfl nfn nfr nfu nif nii nil nin nir niu nix nlf nli nll nln nlr nlu nlx nnf nni nnl nnn nnu nrf nri nrl nrn nrr nru nrx nui nul nun nur nuu nux nxl rff rfi rfl rfn rfr rfu rif rii ril rin rir rix rlf rli rll rln rlr rlu rni rnn rnr rnu rrf rri rrl rrn rrr rru ruf rui run rur ruu rux rxr uff ufi ufl ufn ufr ufu ufx uif uii uil uin uir uiu ulf uli ull uln ulr ulu un- unf uni unl unn unr unu unx ur- urf uri url urn urr uru urx uun uur uuu uxf uxr uxu xfl xfn xfx xii xin xiu xix xlf xli xlr xnu xrf xrx xui xul xun xxi xxl xxx