#include <stdio.h>
#include <stdlib.h>

int main()
{
  int *p;
  int *q;

  p = malloc(sizeof(int) * 4);
  p[0] = 1;
  p[1] = '2';
  p[2] = 3;
  p[3] = 4;
  q = p + 2;

  printf("%d\n", p[3]);
  printf("%d\n", *(q+1));
  printf("%d\n", q-p);

  return 0;
}