using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication6
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Enter two numbers and choose an operator to perform a calculation");
            Console.WriteLine("---------");

            Console.WriteLine("Number one: ");
            double num1 = double.Parse(Console.ReadLine());

            Console.WriteLine("Choose the operator: + - * / ^");
            char operator1 = chooseoperator();

            Console.WriteLine("Number two: ");
            double num2 = double.Parse(Console.ReadLine());



            double calculationresult = calculation1(num1, num2, operator1);
            displaycalculationresult(calculationresult);

        }

        static char chooseoperator()
        {
            char operator1 = Console.ReadKey().KeyChar;
            Console.WriteLine();

            return operator1;

        }

        static double calculation1(double num1, double num2, char operator1)
        {
            switch (operator1)
            {
                case '+':
                    return num1 + num2;

                case '-':
                    return num1 - num2;

                case '*':
                    return num1 * num2;

                case '/':
                    return num1 / num2;

                case '^':
                    return Math.Pow(num1, num2);

                default:
                    return 0;

            }
        }

        static void displaycalculationresult(double calculationresult)
        {
            Console.WriteLine("The result = " + calculationresult);
            Console.ReadKey();

        }
    }
}