#include <stdio.h>

typedef struct sbox {
    int mem1;
    int mem2;
    double mem3;
} SBox;

typedef union ubox {
    int mem1;
    int mem2;
    double mem3;
} UBox;

int main(void) {
    UBox ubx;
    SBox sbx;

    printf("%p %p %p \n", &sbx.mem1, &sbx.mem2, &sbx.mem3);
    printf("%p %p %p \n", &ubx.mem1, &ubx.mem2, &ubx.mem3);
    printf("%ld %ld \n", sizeof(SBox), sizeof(UBox));
    
    return 0;
}