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

using ld = long double;
using ll = long long;

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

	int n; cin >> n;
	
	ld sum = 0, c = 0;
	while(n --) {
		ll _x; scanf("%lld", &_x);
		ld x = sqrt(ld(_x));
		
		x = x + c;
		ld t = sum + x;
		c = t - sum - x;
		sum = t;
		
		printf("%.18Lf\n", sum);
	}
}