#include <bits/stdc++.h>
#define rep(i,n) for (int i=0; i < (int)(n); i++)
#define all(c) c.begin(), c.end()
using namespace std;
typedef long long ll; typedef long double ld;
using vi = vector<int>; using vvi = vector<vi>;
using vl = vector<ll>;  using vvl = vector<vl>;

int main() {
	ios::sync_with_stdio(0); cin.tie(0); //入出力高速化

	int N = 7, M = 6000;
	int cur = 0;
	bool ng = false;
	rep(i,N) {
		int t; cin>>t;
		cur += t;
		if(t == -1) ng = true;
		
		if(!ng && cur <= M) cout<<(M-cur)<<endl;
		else cout<<-1<<endl;
	}
}