title: Ruby Array not sorting
body: <p>I am trying to sort an array, but it always returns the same original input. Do you know why?</p>
  
  <pre><code>puts "Please tell me the array(separated by space, finish by enter twice):"
  x = []
  input = ' '
  while input != ''
    input = gets.chomp
    x.push input
  end
  
  puts x.sort
  </code></pre>