using System;
using System.Numerics;
public class Program
{
    static void Main()
    {
        var l = ReadLineLong()[0] * 100;
        var m = ReadLineLong()[0] * 25;
        var n = ReadLineLong()[0];
        var total = (l + m + n) % 1000;
        var c = total / 100;
        total %= 100;
        c += total / 25;
        total %= 25;
        c += total;
        Console.WriteLine(c);
    }

    static string[] ReadLineSplit()
    {
        var s = Console.ReadLine() ?? "";
        return s.Split(' ');
    }
    static long[] ReadLineLong()
    {
        var s = Console.ReadLine() ?? "";
        return s.Split(' ').Select(long.Parse).ToArray();
    }
}