//Rextester.Program.Main is the entry point for your code. Don't change it.

//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

​

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

using System.Text.RegularExpressions;

​

namespace Rextester

{

    class number

    {

        public static int num;

        public static void power()

        {

            Console.WriteLine("Power of {0}={1}",num,num*num);

            Console.ReadLine();

        }

    }

    public class Program

    {

        public static void Main(string[] args)

        {

            Console.Write("Enter a number");

            number.num=Convert.ToInt32(Console.ReadLine());

            number.power();

        }

    }

}