#include <iostream>
#include <iomanip>
using namespace std;
int main() {
  int a = 55, b = 278;
  cout << showbase << hex << "a = " << a << ", b = " << b << endl;
  a &= b;
  cout << "a = " << a << ", b = " << b << endl;
  b |= a;
  cout << "a = " << a << ", b = " << b << endl;
  a ^= b;
  cout << "a = " << a << ", b = " << b << endl;
}