using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;namespace Ukol1

{

    public class Program

    {

        public static void Main(string[] args)

        {

            Console.WriteLine("zadej cislo");

            string number1text = Console.ReadLine();

            double number1 = double.Parse(number1text);

            Console.WriteLine("zadej druhe cislo");

            string number2text = Console.ReadLine();    

            double number2 = double.Parse(number2text);

            Console.WriteLine("zadej matematickou operaci (+, - , *, / ) ");

            string operationText = Console.ReadLine();

            double result = 0;

            if (operationText == "+" || operationText == "plus")

            { result = number1 + number2;

            }

            else if (operationText == "-" || operationText == "mínus")

            { result = number1-number2;

            }

            else if (operationText == "*" || operationText == "krát")

            { result = number1 * number2; 

            }

            else if (operationText == "/" || operationText == "dělěno")

            { result = number1 / number2; 

            }

            Console.WriteLine("Výsledek je " + result );

​

            Console.ReadLine();

​

​

        }

    }

}