#include <cstdio>
#include <cmath>

int main() {
    int n;
    scanf("%d", &n);
    double s = 0, t, r = 0;
    for (int i = 0; i < n; i++) {
        double x;
        scanf("%lf", &x);
        x = sqrt(x) + r;
        t = s + x;
        r = x - (t - s);
        s = t;
        printf("%.17g\n", s);
    }
}