var age = int.Parse(Console.ReadLine());
            var washingMachinePrice = double.Parse(Console.ReadLine());
            var presentPrice = int.Parse(Console.ReadLine());

            var savings = 0;
            var moneyFromPresents = 0;
            var bonus = 10;
            for (int i = 1; i <= age; i++)
            {
                if (i % 2 == 0)
                {
                    savings += bonus;
                    savings -= 1;
                    bonus += 10;