//vhod     
            int ozelenqvane = int.Parse(Console.ReadLine());
            //operacia
            //ozelenqvane
            double cena = cena * 7.61;
            double otsupka = otsupka * 18;
            double kraina cena = cena - otsupka;

            //izhod
            Console.WriteLine(${7.61*18,0:F2 }lv);