#include <stdio.h>
#include <stdint.h>
 
#pragma pack(push, 1) 
typedef struct _aaa_t {
  uint16_t a;
  uint8_t b;
  uint8_t c;
  uint8_t d;
} aaa_t;
#pragma pack(pop)
 
typedef struct _bbb_t {
  uint16_t a;
  uint8_t b;
  uint8_t c;
  uint8_t d;
} bbb_t;
 
int main(void) {
	aaa_t a;
	bbb_t b;
	printf("%d\n", sizeof(a));
	printf("%d\n", sizeof(b));
	printf("%p\n", &(a.a));
	printf("%p\n", &(a.b));
	printf("%p\n", &(a.c));
	printf("%p\n", &(a.d));
	printf("%p\n", &(b.a));
	printf("%p\n", &(b.b));
	printf("%p\n", &(b.c));
	printf("%p\n", &(b.d));
	return 0;
}
 

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