Swapping of numbers using Csharp source code

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

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
           
            int num3, num4, temp1;
            Console.Write("\nEnterFirstNumber : ");
            num3 = int.Parse(Console.ReadLine());

            Console.Write("\nEnterSecondNumber : ");
            num4 = int.Parse(Console.ReadLine());

            temp1 = num3;
            num3 = num4;
            num4 = temp1;

            Console.Write("\nAfter Swapping");
            Console.Write("\nFirst Number : " + num3);
            Console.Write("\nSecond Number : " + num4);
            Console.Read();
         
        }
    }
}

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