C# Exception Handling (FormatException)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ExceptionHandling
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                Console.WriteLine("Enter two integer values");
                int a = int.Parse(Console.ReadLine());
                int b = int.Parse(Console.ReadLine());
                Console.WriteLine("Sum of two numbers: " + (a + b));
            }
            catch (FormatException e)
            {
                Console.WriteLine(e.Message);
            }
        }
    }
}