import java.util.Scanner;
public class No481 {
	public static void main(String[]args) {
		Scanner sc = new Scanner(System.in);
		int []a = new int[9];
		int sum=0;
		for(int i=0;i<9;i++) {
			a[i]=sc.nextInt();
			sum +=a[i];
		}

		System.out.println(55-sum);

	}

}