Game

using System;

namespace Mock_exam_2_Task_1
{
    class Program
    {
        static void Main(string[] args)
        {
            int number = int.Parse(Console.ReadLine());
            int sum = 0;
            int multiplication = 1;
            bool isContainsOne = false;
            while (number != 0)
            {
                isContainsOne = false;
                int currDigit = number % 10;
                sum += currDigit;
                multiplication *= currDigit;

                if (currDigit == 1)
                {
                    isContainsOne = true;
                }

                number /= 10;
            }

            if (isContainsOne)
            {
                multiplication += 1;
            }

            if (multiplication > sum)
            {
                Console.WriteLine(multiplication);
            }

            else
            {
                Console.WriteLine(sum);
            }
        }
    }
}