#include <bits/stdc++.h>
using namespace std;

using ld = long double;

int main() {
	ios::sync_with_stdio(0);

	int n; cin >> n;
	
	ld sum = 0, c = 0;
	while(n --) {
		ld x; cin >> x;
		x = sqrt(x);
		
		x = x + c;
		ld t = sum + x;
		c = t - sum - x;
		sum = t;
		
		cout << fixed << setprecision(18) << sum << '\n';
	}
}