#include <iostream>
#include <iomanip>
#include <cmath>

int main() {
    std::cin.tie(nullptr);
    std::ios::sync_with_stdio(false);
    std::cout << std::setprecision(17);
    int n;
    std::cin >> n;
    double s = 0, t, r = 0;
    for (int i = 0; i < n; i++) {
        double x;
        std::cin >> x;
        x = sqrt(x) + r;
        t = s + x;
        r = x - (t - s);
        s = t;
        std::cout << s << "\n";
    }
}