title: What is inverse function to XOR?
body: <p>There is XOR function in Java - <code>a^b</code></p>
  
  <p>For exemple: <code>5^3 = 6</code></p>
  
  <p>Can you tell me inverse function? If I have <code>6</code> and <code>3</code> can i get range of numbers which include number <code>5</code>?</p>