#include <iostream>
#include <iomanip>
#include <bitset>
using namespace std;

int bit_and_one(int a, int b) {
    int c = a & b;
    return c;
}

int bit_and_two(int a, int b) {

    bitset <8> number_one(a);
    //cout << number_one.to_ulong() << " = " << number_one << endl;
    bitset <8> number_two(b);
    //cout << number_two.to_ulong() << " = " << number_two << endl;
    bitset <8> number;
    for (int i = 7; i >= 0; i--) {
        if (number_one[i] == 1) {
            if (number_two[i] == 1) {
                number[i] = 1;
            }
            else {
                number[i] = 0;
            }
        }
        else {
            if (number_two[i] == 1) {
                number[i] = 0;
            }
            else {
                number[i] = 0;
            }
        }
    }
    //cout << endl;
    //cout << number.to_ulong() << " = " << number << endl;
    return number.to_ulong();
}

void can_bit_and() {
    for (int i = 1; i < 1000; i += 2) {
        bit_and_one(i, i + 2) == bit_and_two(i, i + 2);
    }
}

int main() {
    can_bit_and();
    system("PAUSE");
    return 0;
}