int main(char argv**) {

   FILE *fp;
   char ch;
   int num;
   long length;

   fp = fopen(argv[1], "r");
   if (fp == NULL) {
      puts("cannot open this file");
      exit(1);
   }

   fseek(fp, 0, SEEK_END);
   length = ftell(fp);
   fseek(fp, (length - 1), SEEK_SET);

   do {
      ch = fgetc(fp);
      putchar(ch);
   } while (ch != EOF);

   fclose(fp);
   return(0);
}