using System;
using System.IO;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Numerics;
using System.Diagnostics;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using static System.Math;
using static System.Console;


namespace yukicoder
{
    class Program
    {
        static void Main()
        {
            int L = int.Parse(Console.ReadLine());
            int M = int.Parse(Console.ReadLine());
            int N = int.Parse(Console.ReadLine());

            // 1円を25円に両替
            N = N % 25;
            M += N / 25;

            // 25円を100円に両替
            L += M / 4;
            M = M % 4;

            // 100円を1000円に両替
            L = L % 10;

            Console.WriteLine(L + M + N);

        }
    }
}