#include <stdio.h>

typedef struct {int i; double d; char c; float f;} st;
typedef union {int i; double d; char c; float f;} un;

int main()
{
  st s;
  un u;
  printf("s.i: %p u.i: %p\n", &s.i, &u.i);
  printf("s.d: %p u.d: %p\n", &s.d, &u.d);
  printf("s.c: %p u.c: %p\n", &s.c, &u.c);
  printf("s.f: %p u.f: %p\n", &s.f, &u.f);
  return 0;
}