title: converting inner values to integer of a list in Python
body: <p>After process the values from a <code>stdin</code> I got the following list in my python program:</p>
  
  <pre><code>[['92', '022'], ['82', '12'], ['77', '13']]
  </code></pre>
  
  <p>I am trying to have the values as:</p>
  
  <pre><code>[[92, 22], [82, 12], [77, 13]]
  </code></pre>
  
  <p>I have tried to <code>map</code> the values but found error:  </p>
  
  <pre><code>print map(int, s)
  Traceback (most recent call last):
    File "C:/Users/lenovo-pc/PycharmProjects/untitled11/order string.py", line 13, in &lt;module&gt;
      print map(int, s)
  TypeError: int() argument must be a string or a number, not 'list'
  </code></pre>
  
  <p>Where <code>s</code> is my list.  </p>
  
  <p>Kindly, suggest me what is the optimized way to make the list of str to convert into integer.</p>