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