/* p16.c */

void f1(void)
{
   int x;

   printf("At entry to f1 x = %d \n", x);
   x = 55;
}

void f2(void)
{
   int z;

   printf("At entry to f2 z = %d \n", z);
   z = 102;
}

main()
{
   f1();
   f2();
   f1();
}