title: C# -> string.Reverse(); - do not work in # using System.Linq;
body: <p>This program is not working as expected and I'm not sure why. The error is <code>CS0266 " 
  Error   CS0266  Cannot implicitly convert type 'System.Collections.Generic.IEnumerable&lt;char&gt;' to 'string'. An explicit conversion exists (are you missing a cast?)</code></p>
  
  <p>BUT,
  it should work properly under using System.Linq; </p>
  
  <pre><code>using System;
  using System.Linq;
  namespace centuryyearsminutes
  {
      class Program
      {
          static void Main(string[] args)
          {
              string aa = "Hello World!";
              string bb = aa.Reverse();
              Console.WriteLine(bb);
          }
      }
  }
  </code></pre>