using System;
using System.Collections.Generic;

class Program
{
    static string InputPattern = "Input3";

    static List<string> GetInputList()
    {
        var WillReturn = new List<string>();

        if (InputPattern == "Input1") {
            WillReturn.Add("7");
            WillReturn.Add("20");
            WillReturn.Add("10");
            //
            //
        }
        else if (InputPattern == "Input2") {
            WillReturn.Add("0");
            WillReturn.Add("0");
            WillReturn.Add("0");
            //
            //
        }
        else {
            string wkStr;
            while ((wkStr = Console.ReadLine()) != null) WillReturn.Add(wkStr);
        }
        return WillReturn;
    }

    static void Main()
    {
        List<string> InputList = GetInputList();
        int L = int.Parse(InputList[0]);
        int M = int.Parse(InputList[1]);
        int N = int.Parse(InputList[2]);

        int SumMoney = L * 100 + 25 * M + N;

        int CoinCnt = 0;
        SumMoney %= 1000;
        CoinCnt += SumMoney / 100; SumMoney %= 100;
        CoinCnt += SumMoney / 25; SumMoney %= 25;
        CoinCnt += SumMoney;
        Console.WriteLine(CoinCnt);
    }
}