fff ffg ffi ffl ffn ffs fgf fgg fgi fgl fgn fgs fif fig fii fil fin fis flf flg fli fll fln fls fnf fng fni fnl fnn fns fsf fsg fsi fsl fsn fss gff gfi gfl gfs ggg ggi ggn ggs gif gig gii gil gin gis glf glg gli gll gln gls gnf gni gnl gnn gns gsf gsg gsi gsl gsn gss i-f iff ifg ifi ifl ifn ifs igf igg igi igl ign igs iif iii iil iin iis il- ilf ilg ili ill iln ils in- inf ing ini inl inn ins is- isf isg isi isl isn iss lff lfg lfi lfl lfn lfs lgf lgg lgi lgl lgn lgs lif lig lii lil lin lis llf llg lli lll lln lls lng lni lnl lnn lns lsf lsg lsi lsl lsn lss n-i nff nfi nfl nfn nfs ngf ngg ngi ngl ngn ngs nif nig nii nil nin nis nlf nlg nli nll nln nls nnf nng nni nnl nnn nns nsf nsg nsi nsl nsn nss sff sfg sfi sfl sfn sfs sgf sgg sgi sgl sgn sgs sif sig sii sil sin sis slf slg sli sll sln sls snf sng sni snl snn sns ss- ssf ssg ssi ssl ssn sss