using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;

namespace yukicore
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            int[] nums = new int[3];
            int nums0 = int.Parse(Console.ReadLine()); //100
            int nums1 = int.Parse(Console.ReadLine()); //25
            int nums2 = int.Parse(Console.ReadLine()); //1
            var num = nums0 * 100 + nums1 * 25 + nums2;
            int count = 0;

            num = num % 1000;

            count += num / 100;
            num = num % 100;


            count += num / 25;
            num = num % 25;


            count += num;
            Console.WriteLine(count);
        }
    }
}