#include <bits/stdc++.h>
#define int long long
using namespace std;
#define fastnuces ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);int t = 1;


void solve(){
int n=0;
for (int i = 0; i < 9; i++)
{
    int temp;
    cin>>temp;
    n+=temp;
}
cout<<55-n;



}


signed main() {
    fastnuces;
    // cin >> t;
    while (t--) {
        solve();
    }
    return 0;
}