import java.util.ArrayList;
import java.util.Scanner;

public class No481_OneToTen {
    public static void main(String[] args) {
        
        Scanner scan = new Scanner(System.in);
        int count = 0;
        for (int i = 0; i < 9; i++) {
           count += scan.nextInt();
        }
        scan.close();

        System.out.println(55-count);
    }
}