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

struct hest {
  unsigned char a:4;
  unsigned char b:4;
};

int main(void)
{
  struct hest *s;
  s = malloc(sizeof(struct hest));

  s->a = 1;
  s->b = 1;

  printf("%d", (char) s);

  free(s);

  return 0;
}