package net.ipipip0129.yukicoder.no32;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        int yen100 = Integer.parseInt(scan.nextLine());
        int yen25 = Integer.parseInt(scan.nextLine());
        int yen1 = Integer.parseInt(scan.nextLine());

        yen25 += (int) yen1/25;
        yen1 %= 25;
        yen100 += (int) yen25/5;
        yen25 %= 5;
        int yen1000 = (int) yen100/10;
        yen100 %= 10;

        System.out.println(yen1 + yen25 + yen100);
    }
}