title: How do I get the sums for all elements of two lists in Kotlin?
body: <p>In Kotlin I have two lists:</p>
  
  <pre><code>val x: List&lt;Int&gt; = listOf(1,2,3,4,5,6)
  val y: List&lt;Int&gt; = listOf(2,3,4,5,6,7)
  </code></pre>
  
  <p>How do I get:</p>
  
  <pre><code>val z: List&lt;Int&gt; = 3,5,7,9,11,13
  </code></pre>
  
  <p>without using loops?</p>