fff ffi ffk ffn fft fif fii fik fin fit fkf fki fkk fkt fnf fni fnk fnn fnt ftf fti ftk ftn ftt i-f iff ifi ifn ift iif iii iin iit ikf iki ikk ikt in- inf ini ink inn int itf iti itk itn itt k-t kff kfi kif kii kik kin kit kki kkk kkn kkt kn- knf kni knk knn knt ktf ktk ktn ktt n-i nff nfi nfk nfn nft nif nii nik nin nit nkf nki nkk nkn nkt nnf nni nnk nnn nnt ntf nti ntk ntn ntt tff tfi tfk tfn tft tif tii tik tin tit tkk tkt tnf tni tnk tnn tnt ttf tti ttk ttn ttt