using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("1-ci ededi daxil edin: ");

        double number1 = double.Parse(Console.ReadLine());

        Console.WriteLine("2-ci ededi daxil edin: ");

        double number2 = double.Parse(Console.ReadLine());

        Console.WriteLine("'+' Toplama");

        Console.WriteLine("'-' Cixma");

        Console.WriteLine("'*' Vurma");

        Console.WriteLine("'/' Bolme");

        Console.WriteLine("Emeliyyati daxil edin: ");

        char operation = char.Parse(Console.ReadLine());

        /*switch (operation)

        {case '+':

         double cem = double.Parse(Console.ReadLine());

         cem = number1 + number2;

         Console.WriteLine("Cavab: " + cem);

         break;

         case '-':

         if (number1 > number2)

         { double ferq = double.Parse(Console.ReadLine());

            ferq = number1 - number2;

          Console.WriteLine("Cavab: " + ferq);

         }

         else

         { double ferq = double.Parse(Console.ReadLine());

          ferq = number2 - number1;

          Console.WriteLine("Cavab: " + ferq);

         }

         break;

         case '*' :

         double hasil = double.Parse(Console.ReadLine());

         hasil = number1 * number2;

         Console.WriteLine("Cavab: " + hasil);

         break;

         case '/' :

         if (number1!=0 && number2!=0)

         { double qismet = double.Parse(Console.ReadLine());

          qismet = number1 / number2;

          Console.WriteLine("Cavab: " + qismet);

         }

         else

         { Console.WriteLine("Yanlis emeliyyat!");

         }

         break;

        }*/

        static double Toplama (double number1, double number2)

        { double cem = double.Parse(Console.ReadLine());

         cem = number1 + number2;

         return cem;

        }

        static double Cixma (double number1, double number2)

        {if (number1 > number2)

         { double ferq = double.Parse(Console.ReadLine());

         ferq = number1 - number2;

         return ferq;

         }

         else

         { double ferq = double.Parse(Console.ReadLine());

          ferq = number2 - number1;

          return ferq;

         }

         static double Vurma (double number1, double number2)

         {double hasil = double.Parse(Console.ReadLine());

         hasil = number1 * number2;

          return hasil;

         }

         static double Bolme (double number1, double number2)

         {if (number1!=0 && number2!=0)

         { double qismet = double.Parse(Console.ReadLine());

          qismet = number1 / number2;

          return qismet;

         }

         else

         { Console.WriteLine("Yanlis emeliyyat!");

         }

         }

        }

    }

}