#include <iostream>
#include <algorithm>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
//#define endl "\n";
int main(){
    vector<ll> T(7);
    ll sum = 0;
    for(int i = 0; i < 7; i++){
        ll t;
        cin >> t;
        sum += t;
        if(sum > 6000 || t == -1) cout << -1 << endl;
        else cout << 6000 - sum << endl;
    }
    return 0;
}