import java.io.IOException;
import java.util.Scanner;

public class Main{
  public static void main (String[] args) throws IOException{

	  Scanner sc = new Scanner(System.in);
	  long sum = 0;
	  for(int i=1;i<10;i++){
		  long num = sc.nextInt();
		  sum += num;
	  }
	  System.out.println(55-sum);
  }
}