title: Merge two dictionaries based on the same keys
body: <p>I have the following:</p>
  
  <pre><code>dict1 Dictionary&lt;int, string&gt;
  1, "A"
  2, "B"
  3, "C"
  
  
  dict2 Dictionary&lt;int, string&gt;
  1, "G"
  2, "H"
  3, "I"
  </code></pre>
  
  <p>I want two create a third dictionary where the key and value are the values of the above where the keys match:</p>
  
  <pre><code>dict3 Dictionary&lt;strin, string&gt;
  "A", "G"
  "B", "H"
  "C", "I"
  </code></pre>
  
  <p>I can accomplish this with two loops very easily, but what would be the lambda equivalent?</p>