#include <stdio.h>
#include <string.h>

int main(void) {
	int a = 78;
	int b = 42;
	void* a_ptr = &a;
	void* b_ptr = &b;
	
	a_ptr = a_ptr + (size_t)b_ptr;
	b_ptr = a_ptr - (size_t)b_ptr;
	a_ptr = a_ptr - (size_t)b_ptr;
	
	printf("%d %d\n", a, b);
	printf("%d %d\n", *(int*)a_ptr, *(int*)b_ptr);
}