title: Is there a way to add a number to the first part of a tuple in a list?
body: <p>So i have a list for example:</p>
  
  <pre><code>a = [(1,2),(2,3)]
  </code></pre>
  
  <p>i was wondering if there is a way to add a number lets say 2 to the seccond part of the tuple so it looks like</p>
  
  <pre><code>a = [(1,4),(2,5)]
  </code></pre>