using System;

namespace ConsoleApp11
{
    class Program
    {
        static void Main(string[] args)
        {
            int x = 0;
            int y = 0;
            int z = 0;

            int L = int.Parse(Console.ReadLine());
            int M = int.Parse(Console.ReadLine());
            int N = int.Parse(Console.ReadLine());

            x = (L + (M + (N / 25)) / 4) % 10;
            y = (M + (N / 25)) % 4;
            z = N % 25;

           

            Console.WriteLine(x + y + z);
        }
    }
}