using System;

public class Program

{

    public static void Main()

    {

        var myNumber = "12.3";

        var myNumDecimal = Convert.ToDecimal(myNumber);

        var theOutputNormal = myNumDecimal.ToString();

        var theOutputPadded = myNumDecimal.ToString("0.00");

        Console.WriteLine(theOutputNormal);

        Console.WriteLine(theOutputPadded);

    }

}