title: Create a list of 100 integers whose values equal their indexes
body: <p>Create a list of 100 integers whose value and index are the same, e.g.</p>
  
  <pre><code>mylist[0] = 0, mylist[1] = 1, mylist[2] = 2, ...
  </code></pre>
  
  <p>Here is my code.</p>
  
  <pre><code>x_list=[]
  
  def list_append(x_list):
      for i in 100:
          x_list.append(i)
  
          return(list_append())
      print(x_list)
  </code></pre>