using System;

​

public class Program

{

    public static void Main()

    {

        string a;

        Console.WriteLine("Enter a number");

        a = Console.ReadLine();

        string b;

        Console.WriteLine("Enter another number");

        b = Console.ReadLine();

        string response;

        Console.WriteLine("Enter a mathematical function between: MOD, DIV, EXP");

        response = Console.ReadLine();

        response.ToUpper();

        if (response == "MOD")

        {

            MOD(Convert.ToInt32(a), Convert.ToInt32(b));

        }

        else if (response == "DIV")

        {

            DIV(Convert.ToInt32(a), Convert.ToInt32(b));

        }

        else if (response == "EXP")

        {

            EXP(Convert.ToInt32(a), Convert.ToInt32(b));

        }

    }

​

    public static void MOD(int c, int d)

    {

        Console.WriteLine("The MOD value is " + (c % d));

        return;

    }

​

    public static void DIV(int c, int d)

    {

        Console.WriteLine("The DIV value for the first number divided by the second number is " + (c / d));

        return;

    }

​

    public static void EXP(int c, int d)

    {

        int result = 1;

        for (int z = 0; z < d; z++)

        {

            result = result * c;

        }

​

        Console.WriteLine("The EXP value is: " + result);

    }

}