title: Reverse string in given format in c# without using inbuilt function
body: <p>Ques: I have a string <code>"This is paragraph."</code></p>
  
  <p>Desired Output: <code>sihT si hpargarap.</code></p>
  
  <p>Sample Code:</p>
  
  <pre><code>using System.Data;
  using System.Text;
  class ReverseString
  {
    public static void Main()
    {
      string inputString="This is paragraph.";// input can be dynamic
      char[] x=inputString.ToCharArray();
      StringBuilder sb = new StringBuilder();
      for(int i=inputString.Length-1;i&gt;=0;--i)
      {
        sb.Append(x[i]);
      }
      Console.Write(sb.ToString());
      Console.ReadKey();
    }
  }
  </code></pre>
  
  <p>Please correct me.</p>