why is that wrong?

using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {

            try { Console.Write(" Enter the number of times to print \"Yay!\": ");
                     var i = 0;
                     var num = int.Parse(Console.ReadLine());
                     while(true)
                     {
                         if(i>= num) 
                         { break; }
                         Console.WriteLine("Yay!");
                         i+= 1;
                     }  
                }
                 catch(FormatException)
                 { 
                     Console.Write("You must enter a whole number."); 
                 }

        }
    }
}