square root calculator

using System;

class Program
{
    static void Main(string[] args)
    {
        string numberToParse;
        int parsedNumber;

        Console.WriteLine("Enter a Number : ");
        numberToParse = Console.ReadLine();

        while (!int.TryParse(numberToParse, out parsedNumber))
        {
            Console.WriteLine("Please enter a valid Number: ");
            numberToParse = Console.ReadLine();
        }


        double squareRootToPrint = Math.Sqrt(parsedNumber);
        Console.WriteLine("Square root of {0} is: {1}", parsedNumber, squareRootToPrint);
        Console.ReadLine();
    }
}