import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int num[] = new int[9];
		int sum = 0;
		for (int i = 0; i < num.length; i++) {
			num[i]=sc.nextInt();
			sum += num[i];
		}
		System.out.println(55 - sum);
	}
}