using System;

public class Program

{

    public static void Main()

    {

        /*

        int result =  Add(15, 31);

        Console.WriteLine(result);

        */

        Console.WriteLine(Add(15, 31)); 

        Console.WriteLine(Multiply(15, 31));

        Console.WriteLine(Divide(31, 15));

    }

    public static int Add(int num1, int num2) 

    {

       return num1 + num2; 

    }

    // create a method that multiplies 2 values to each other and returns the result of that multiplication.

    public static int Multiply(int num1, int num2)

    {

        return num1 * num2;

    }

    public static double Divide(double num1, double num2)

    {

        return num1 / num2;

    }

}