using System;

public class Program

{

    public static void Main()

    {

        int num1 = 0; int num2 = 0; 

        string expression;

        Console.WriteLine("BASIC CALCULATOR");

        Console.WriteLine("Input first number");

        num1 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("TYPE /, +, -, *");   

        expression = Convert.ToString(Console.ReadLine());

        Console.WriteLine("Input second number");

        num2 = Convert.ToInt32(Console.ReadLine());

        if (expression == "+")

        {

            Console.WriteLine(num1 + " + " + num2  + " = "  +(num1 + num2) );   

        }

        if (expression == "-")

        {

            Console.WriteLine(num1 + " - " + num2  + " = "  +(num1 - num2) );   

        }

        if (expression == "*")

        {

            Console.WriteLine(num1 + " * " + num2  + " = "  +(num1 * num2) );   

        }

        if (expression == "/")

        {

            Console.WriteLine(num1 + " / " + num2  + " = "  +(num1 / num2) );   

        }

    }

}