using System;
using System.Collections.Generic;
using System.Linq;

namespace ConsoleApp18
{
    class Program
    {
        //static List<int> list = Console.ReadLine().Split().Select(int.Parse).ToList();

        static int l = int.Parse(Console.ReadLine());
        static int m = int.Parse(Console.ReadLine());
        static int n = int.Parse(Console.ReadLine());
        static int o = 0;

        static void Main(string[] args)
        {
            m += n / 25;
            n %= 25;

            l += m / 4;
            m %= 4;

            o += l / 10;
            l %= 10;

            Console.WriteLine(n+m+l);
            Console.ReadLine();
        }
    }
}