fiing fiini finif fitin fitit gi-fi giing gippi gitig gitit gnptg i-pin if-- ifin ifttt igigi igni- iiiii iitti infin infit ingin ining inini inipi innit innti iping ipini ipiti itfit itigi ittti n-p-n niftp niiip ningi ninti nipin nipit nitin nitti ntini p-n-p pgnig pigin pigit piing pinin pinit pinn- pinni pipit pippi pitin pitip pitti pptnt ti-ti tifni tigin tigit tiifp tiigi tingi tinig tipin tipit tippi titig titii titin titpn titti tnftp tntnt tping ttttt