import java.util.Scanner;
class Itikara{
	public static void main(String args[]){
		Scanner s = new Scanner(System.in);
		int a[] = new int[9];
		int sum = 0;
		for(int i = 0; i < 9; i++){
			a[i] = s.nextInt();
			sum += a[i];
		}
		System.out.println(55 - sum);
	}
}