title: Splitting string into chars and then back to string
body: <p>I was doing a simple c++ chat and i wanted to encrypt the messages with a simple made code.
  So i thought it would be like chars a-x and then it would replace them for example a -11.
  So it would need to </p>
  
  <ol>
  <li>Split the message into chars  </li>
  <li>Change the chars into number</li>
  <li>Put them back in the right order.</li>
  </ol>
  
  <p>So does anyone knows how to do it?
  Thanks :)</p>