using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace template
{
    class Program
    {
        static void Main(string[] args)
        {
            int a = int.Parse(Console.ReadLine());
            int b = int.Parse(Console.ReadLine());
            int c = int.Parse(Console.ReadLine());
            int sum = a * 100 + b * 25 + c;
            sum %= 1000;
            int ret = sum / 100;
            sum %= 100;
            ret += sum / 25;
            Console.WriteLine(ret + sum % 25);
        }
    }
}