import java.util.*;

class Main {
	static int N;
	static int[] A;

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

	static void tr(Object... objects) {
		System.out.println(Arrays.deepToString(objects));
	}

}