title: rnn sequence retrieval with tensorflow or cntk
body: <p>Having a list of constant length sequences(array of 192 int), I want to retrieve the nearest complete sequence matching partial input :<br>
  Example with 4 sequences :</p>
  
  <pre><code>1,4,3,2  
  1,2,3,4  
  1,2,3,4  
  1,2,1,4  
  </code></pre>
  
  <p>input -> 1,2 output ->1,2,3,4<br>
  Is <code>seq2seq</code> model the best way to solve this ?<br>
  Where can I find a COMPLETE example with tensoflow or CNTK (model creation, training, decode) ?</p>