using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter operator: ");

        string op = Console.ReadLine();

        Console.WriteLine("Enter operator: ");

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

        Console.WriteLine("Enter operator: ");

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

        if(op.Equals("+")){

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

        } else if (op.Equals("-")) {

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

        } else if (op.Equals("*")) {

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

        } else if (op.Equals("/")) {

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

        } else {

            Console.WriteLine("Operator " + op + " is not available");

        }

    }

}