import java.util.Scanner;

public class Answer {
	public static void main(String str[]) {
        Scanner sc = new Scanner(System.in);

        int num_100 = Integer.valueOf(sc.nextLine());
        int num_25 = Integer.valueOf(sc.nextLine());
        int num_1 = Integer.valueOf(sc.nextLine());

        int sum = 0;

        num_25 += num_1 / 25;
        num_1 = num_1 % 25;

        num_100 += num_25 / 4;
        num_25 = num_25 % 4;

        num_100 = num_100 % 10;

        sum = num_1 + num_25 + num_100;
        System.out.println(sum);
	}
}