title: Get all elements that only occur once
body: <p>Using LINQ, can I get a list of all int elements that only occur once? </p>
  
  <p>For instance</p>
  
  <pre><code>{1,2,4,8,6,3,4,8,8,2}
  </code></pre>
  
  <p>would become</p>
  
  <pre><code>{1,6,3}
  </code></pre>
  
  <p>Thanks!</p>