import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int l = sc.nextInt();
		int m = sc.nextInt();
		int n = sc.nextInt();
		int price = l * 100 + m * 25 + n;
		int ans = price % 1000 / 100;
		ans += price % 100 / 25;
		ans += price % 25;
		System.out.println(ans);
 	}
}