using System;

namespace m5_act1

{

    public class Program

    {

        public static void Main(string[] args)

        {

            int c , k = 0;

            int add, subtract, multiply, divide = 0;

            add = 1; 

            subtract = 2; 

            multiply = 3; 

            divide = 4;

            Console.WriteLine("Choose Operation: " );

            add = Convert.ToInt32(Console.ReadLine());

            subtract = Convert.ToInt32(Console.ReadLine());

            multiply = Convert.ToInt32(Console.ReadLine());

            divide = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("ENTER FIRST VALUE: ");

            c = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("ENTER SECOND VALUE: ");

            k = Convert.ToInt32(Console.ReadLine());

            if ( add == 1)

                Console.WriteLine("The sum is: " + (c + k));

            else 

                if ( subtract == 2) 

                    Console.WriteLine("The Difference is: " + (c - k));

            else 

                if ( multiply == 3) 

                    Console.WriteLine("The Product is: " + ( c * k));

            else 

                if ( divide == 4 ) 

                    Console.WriteLine("The Quotient is: " + ( c / k)); 

        }

    }

}