import java.util.Scanner;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;

class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        long sum = 0;
        for(int i=0; i<9; ++i) {
            sum += in.nextLong();
        }
        System.out.println(55 - sum);

        in.close();
    }
}