using System;
using System.Linq;
using System.Collections.Generic;
class Program
{
    static void Main(string[] args)
    {
       int sum = 0;
       var x = Console.ReadLine().Split(' ');
        for (int i = 0; i < 9; i++)
        {
            sum += int.Parse(x[i]);
        }

        Console.WriteLine(55-sum);
    }
}