fff ffg ffi ffn ffp ffs fgf fgg fgi fgn fgp fgs fif fig fii fin fip fis fnf fng fni fnn fnp fns fpg fpi fpn fpp fps fsf fsg fsi fsn fsp fss g-p gff gfi gfp gfs ggg ggi ggn ggp ggs gif gig gii gin gip gis gnf gni gnn gnp gns gpf gpg gpi gpn gpp gps gsf gsg gsi gsn gsp gss i-f iff ifg ifi ifn ifp ifs igf igg igi ign igp igs iif iii iin iip iis in- inf ing ini inn inp ins ipf ipg ipi ipn ipp ips is- isf isg isi isn isp iss n-i nff nfi nfn nfp nfs ngf ngg ngi ngn ngp ngs nif nig nii nin nip nis nnf nng nni nnn nnp nns npf npg npi npn npp nps nsf nsg nsi nsn nsp nss p-p pff pfg pfi pfn pfp pfs pgf pgg pgi pgn pgp pgs pif pig pii pin pip pis pn- pnf png pni pnn pnp pns ppf ppg ppi ppn ppp pps ps- psf psg psi psn psp pss sff sfg sfi sfn sfp sfs sgf sgg sgi sgn sgp sgs sif sig sii sin sip sis snf sng sni snn snp sns spf spg spi spn spp sps ss- ssf ssg ssi ssn ssp sss