title: How to check if list2 has all the contents of one of list1's nested lists?
body: <pre><code>`list1 = [[1, 2, 3], [4, 5, 6]]
   list2 = [1 ,8 ,7 ,2, 0, 3]`
  </code></pre>
  <p>Output should say, that list2 contains all integers in one of list1's sublists.</p>