#include <iostream>
#include <sstream>
#include <vector>
#include <algorithm>
#include <string>
#include <functional>
#include <numeric>
#include <ctype.h>
#include <cstdlib>
#include <string.h>
#include <cmath>
#include <cstdio>
#include <map>
#include <queue>
#include <utility>

using namespace std;

const int INF = 1000000007;
const double PI = acos(-1.0);


int main()
{
	vector<int> vec;
	int input;

	for (int i = 0; i < 9; i++)
	{
		cin >> input;
		vec.push_back(input);
	}

	int ans = 55 - accumulate(vec.begin(), vec.end(), 0);

	cout << ans << endl;
	
}