// august

using System;

​

namespace arithmeticCalculator

{

    public class Program

    {

        public static void Main(string[] args)

        {

            // input calculations in form NUM A [enter] OPERATION [enter] NUM B

            // permitted operators are *, /, +, -, ^, ^/ (this represents radical)

            // after inputting calculation type 0 to calculate again, type 1 to stop

            string ascii1 = @"

 ________  ________  ___  _________  ___  ___  _____ ______   _______  _________  ___  ________     

|\   __  \|\   __  \|\  \|\___   ___\\  \|\  \|\   _ \  _   \|\  ___ \|\___   ___\\  \|\   ____\    

\ \  \|\  \ \  \|\  \ \  \|___ \  \_\ \  \\\  \ \  \\\__\ \  \ \   __/\|___ \  \_\ \  \ \  \___|    

 \ \   __  \ \   _  _\ \  \   \ \  \ \ \   __  \ \  \\|__| \  \ \  \_|/__  \ \  \ \ \  \ \  \       

  \ \  \ \  \ \  \\  \\ \  \   \ \  \ \ \  \ \  \ \  \    \ \  \ \  \_|\ \  \ \  \ \ \  \ \  \____  

   \ \__\ \__\ \__\\ _\\ \__\   \ \__\ \ \__\ \__\ \__\    \ \__\ \_______\  \ \__\ \ \__\ \_______\

    \|__|\|__|\|__|\|__|\|__|    \|__|  \|__|\|__|\|__|     \|__|\|_______|   \|__|  \|__|\|_______|                                                                                       

            ";

            string ascii2 = @"

 ________  ________  ___       ________  ___  ___  ___       ________  _________  ________  ________     

|\   ____\|\   __  \|\  \     |\   ____\|\  \|\  \|\  \     |\   __  \|\___   ___\\   __  \|\   __  \    

\ \  \___|\ \  \|\  \ \  \    \ \  \___|\ \  \\\  \ \  \    \ \  \|\  \|___ \  \_\ \  \|\  \ \  \|\  \   

 \ \  \    \ \   __  \ \  \    \ \  \    \ \  \\\  \ \  \    \ \   __  \   \ \  \ \ \  \\\  \ \   _  _\  

  \ \  \____\ \  \ \  \ \  \____\ \  \____\ \  \\\  \ \  \____\ \  \ \  \   \ \  \ \ \  \\\  \ \  \\  \| 

   \ \_______\ \__\ \__\ \_______\ \_______\ \_______\ \_______\ \__\ \__\   \ \__\ \ \_______\ \__\\ _\ 

    \|_______|\|__|\|__|\|_______|\|_______|\|_______|\|_______|\|__|\|__|    \|__|  \|_______|\|__|\|__|

            ";

            Console.WriteLine(ascii1);

            Console.WriteLine(ascii2);

            for (int c = 0; c < 1; c = Convert.ToInt32(Console.ReadLine()))

            {

                if (c == 0)

                {

                    double a = Convert.ToDouble(Console.ReadLine());

                    string func = Convert.ToString(Console.ReadLine());

                    double b = Convert.ToDouble(Console.ReadLine());

                    switch (func)

                    {

                        case "*":

                            Console.WriteLine(a * b);

                            break;

                        case "/":

                            Console.WriteLine(a / b);

                            break;

                        case "+":

                            Console.WriteLine(a += b);

                            break;

                        case "-":

                            Console.WriteLine(a -= b);

                            break;

                        case "^":

                            Console.WriteLine(Math.Pow(a, b));

                            break;

                        case "^/":

                            Console.WriteLine(Math.Pow(b, 1.0 / a));

                            break;

                    }

                    Console.WriteLine("enter 0 to begin new calculation, or 1 to end program");

                }

                else

                {

                    Environment.Exit(1);

                }

            }

        }

    }

}