title: How to combine two column lists?
body: <p>I have </p>
  
  <pre><code>g = [[1], [2], [3], [4], [5], [6]]
  c = [[9], [8], [7], [6], [5], [4]]
  </code></pre>
  
  <p>And I need to get</p>
  
  <pre><code>t = [[1,9], [2,8], [3,7], [4,6], [5,5], [6,4]]
  </code></pre>
  
  <p>Please help me out here</p>