#include <stdio.h>
#include <string.h>

a()
{
  char s1[4];

  printf("s1: 0x%x\n", s1);
  printf("%d\n", strlen(s1));
}

b()
{
  int i, j;
  i = 0xffffffff;
  j = 0xffffffff;
  printf("&i: 0x%x   &j: 0x%x\n", &i, &j);
}

main()
{
  a();
  b();
  a();
}