title: Finding the complementry strand of DNA
body: <p>I'm given the following DNA string:</p>
  <pre class="lang-py prettyprint-override"><code>mydna = 'AGUGGCUAUUACUACAUGCCGAAGUUCCUUAAAUUUAACUUACCAGGCUUAACCGGAUGAUGAUUAUUAUUACCUUAAUUUUA'
  </code></pre>
  <p>How can I get the DNA string's complement?</p>