#include "stdafx.h"
#include <iostream>

using namespace std;

int main()
{
	int a, b, c;

	a = 5;		// 0101
	b = 3;		// 0011
	c = a & b;	// 0001
	c = a | b;	// 0111
	c = a ^ b;	// 0110

	a = 0;
	b = ~a;  // -1

	a = 56;
	b = ~a;
	b++;

	a = 56;
	b = 93;

	a ^= b;
	b ^= a;
	a ^= b;

	if (a & 7 == 0)    // 7 is 000000111
		cout << "a is divisible by 8";

	return 0;
}