C# basic Final. Works on mono, but can't find bug. (spelling error?)

using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            Console.Write("Enter the number of times to print \"Yay!\": ");
            var input = 0;
            try
            { 
              input =  int.Parse(Console.ReadLine());
              if(input < 0)
              {
                while(input < 0)
                {
                    Console.WriteLine("You must enter a positive number.");
                    Console.Write("Enter the number of times to print \"Yay!\": ");
                    input =  int.Parse(Console.ReadLine());
                }
              }
            }
            catch(FormatException)
            {
                Console.WriteLine("You must enter a whole number.");
            }
            catch
            {
              Console.WriteLine("You must enter a positive number.");   
            }    
            var counter = 0;
            while (counter != input)
            {
                Console.WriteLine("\"Yay!\"");
                counter += 1;
            }



        }
    }
}