class Program
{
    static void Main(string[] args)
    {
        string inputHundred = Console.ReadLine()!;
        string inputTwofive = Console.ReadLine()!;
        string inputOne = Console.ReadLine()!;

        int hundred = int.Parse(inputHundred);
        int twofive = int.Parse(inputTwofive);
        int one = int.Parse(inputOne);

        while (hundred > 10 || twofive > 4 || one > 25)
        {
            hundred = hundred % 10;

            hundred += twofive / 4;
            twofive = twofive % 4;

            twofive += one / 25;
            one = one % 25;
        }
        int sum = hundred + twofive + one;

        Console.WriteLine(sum);
    }
}