fff ffg ffi ffm ffn fgf fgg fgi fgm fgn fif fig fii fim fin fmf fmg fmi fmm fmn fnf fng fni fnm fnn gff gfi gfm ggg ggi ggm ggn gif gig gii gim gin gmf gmg gmi gmm gmn gnf gni gnm gnn i-f iff ifg ifi ifm ifn igf igg igi igm ign iif iii iim iin im- imf img imi imm imn in- inf ing ini inm inn m-f mff mfg mfi mfm mfn mgf mgi mgm mgn mi- mif mig mii mim min mmf mmg mmi mmm mmn mnf mng mni mnm mnn n-i nff nfi nfn ngf ngg ngi ngm ngn nif nig nii nim nin nmg nmi nmm nmn nnf nng nni nnm nnn