using System;
//Maixior:D
namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            double temp;
            double temp1;
            int chose;
            string restart;
      Start:
            Console.Clear();
            Console.Write("Witaj w przeliczniku temperatury \n");
            Console.Write("Wybierz jak chcesz przeliczac: \n 1. Zamien °C \n 2. Zamien K \n 3. Zamien °F  \n 4. Chce wyjsc \n");
      Chose:
            chose = Convert.ToInt32(Console.ReadLine());
            switch(chose) {
                case 1:
                    Console.Write("podaj °C: "); temp = Convert.ToDouble(Console.ReadLine());
                    temp1 = temp + 273.15;
                    Console.Write("tempertra w K: " + temp1  + "\n");
                    temp1 = (temp * 1.8) + 32;
                    Console.Write("tempertra w °F: " + temp1 + "\n");
                    break;
                case 2:
                    Console.Write("podaj K: "); temp = Convert.ToDouble(Console.ReadLine());
                    temp1 = temp - 273.15;
                    Console.Write("tempertra w °C: " + temp1 + "\n");
                    temp1 = (temp * 1.8) - 459.67;
                    Console.Write("tempertra w °F: " + temp1 + "\n");
                    break;
                case 3:
                    Console.Write("podaj °F: "); temp = Convert.ToDouble(Console.ReadLine());
                    temp1 = (temp - 32) / 1.8;
                    Console.Write("tempertra w °C: " + temp1 + "\n");
                    temp1 = (temp + 459.67) * 5/9;
                    Console.Write("tempertra w K: " + temp1 + "\n");
                    break;
                case 4:
                    Environment.Exit(1);
                    break;
                default:
                    Console.Write("Zly wybor, sproboj jeszcze raz \n");
                    goto Chose;
            }
        End:
            Console.Write("jeszcze raz? y/n \n");
            restart = Console.ReadLine();
            if (restart == "y" || restart == "Y") {
                goto Start;
            } else if (restart == "n" || restart == "N") {
                Environment.Exit(1);
            } else {
                Console.Write("Zly wybor, sproboj jeszcze raz \n");
                goto End;
            }
        }
    }
}