fff ffg ffi ffk ffl ffn ffs fgf fgg fgi fgl fgn fgs fif fig fii fik fil fin fis fkf fkg fki fkk fkl flf flg fli fll fln fls fnf fng fni fnk fnl fnn fns fsf fsg fsi fsk fsl fsn fss gff gfi gfk gfl gfs ggg ggi ggn ggs gif gig gii gik gil gin gis gkn gks glf glg gli glk gll gln gls gnf gni gnl gnn gns gsf gsg gsi gsk gsl gsn gss i-f iff ifg ifi ifl ifn ifs igf igg igi igk igl ign igs iif iii iil iin iis ikf iki ikk ikl iks il- ilf ilg ili ilk ill iln ils in- inf ing ini ink inl inn ins is- isf isg isi isk isl isn iss kff kfg kfi kfs kgf kgi kgl kgs kif kig kii kik kil kin kis kki kkk kkl kkn kks kl- klf klg kli kls kn- knf kng kni knk knl knn ksf ksg ksi ksk ksl ksn kss lff lfg lfi lfk lfl lfn lfs lgf lgg lgi lgk lgl lgn lgs lif lig lii lik lil lin lis lkg lkl lks llf llg lli llk lll lln lls lng lni lnk lnl lnn lns lsf lsg lsi lsk lsl lsn lss n-i nff nfi nfk nfl nfn nfs ngf ngg ngi ngk ngl ngn ngs nif nig nii nik nil nin nis nkf nki nkk nkn nks nlf nlg nli nlk nll nln nls nnf nng nni nnk nnl nnn nns nsf nsg nsi nsk nsl nsn nss sff sfg sfi sfk sfl sfn sfs sgf sgg sgi sgk sgl sgn sgs sif sig sii sik sil sin sis sk- skf skg ski skk skl sks slf slg sli slk sll sln sls snf sng sni snk snl snn sns ss- ssf ssg ssi ssk ssl ssn sss