import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		Scanner scanner = new Scanner(System.in);
		int L = scanner.nextInt();
		int M = scanner.nextInt();
		int N = scanner.nextInt();
		int sum = 0;
		int ans = 0;
		
		sum = 100 * L + 25 * M + N;
		sum = sum % 1000;
		ans += sum / 100;
		sum %= 100;
		ans += sum / 25;
		sum %= 25;
		ans += sum;
		
		System.out.println(ans);
		
		scanner.close();
	}
}