#include<bits/stdc++.h>
#define int long long
using namespace std;
void solve(){
	int n;
	cin >> n;
	vector<int> a(n + 1), sum(n + 1);
	for(int i = 1; i <= n - 1; ++ i){
		cin >> a[i]; sum[i] = sum[i - 1] + a[i];
	}
	int xx = 0, ans = 0;
	for(int i = 1; i <= n; ++ i){
		if((i & 1) == 0){
			int t = i / 2; t--;
			xx += sum[n - 1 - t] - sum[t];
		}
		ans += xx;
		if(i != n - 1)
		cout << ans << " ";
		else cout << ans;
	}
	cout << endl;
}
signed main(){
	ios::sync_with_stdio(0);
	int T;
	cin >> T;
	while(T--) solve();
}