using System;
namespace yukicoder
{
    class Program
    {

        static void Main(string[] args)
        {

            int L = int.Parse(Console.ReadLine());
            int M = int.Parse(Console.ReadLine());
            int N = int.Parse(Console.ReadLine());
            int sum, a, b, j, x, z;

            L = L * 100;
            M = M * 25;
            N = N * 1;

            sum = L + M + N;

            while(sum >= 1000)
            {
                sum = sum - 1000;
            }

            j = sum / 100;
            a = sum % 100;
            x = a / 25;
            b = a % 25;
            z = b / 1;
            Console.WriteLine(j + x + z);
        }
    }
}