12. Number Checker

Write a program, which reads an input from the console and prints "It is a number." if it’s a number. If it is not write "Invalid input!"
using System;

namespace _12._Number_Checker
{
    class NumberChek
    {
        static void Main(string[] args)
        {
            //var input = Console.ReadLine();

            try
            {
                var input = int.Parse(Console.ReadLine());
                Console.WriteLine("It is a number.");
            }
            catch (Exception)
            {
                Console.WriteLine("Invalid input!");
            }
        }
    }
}