#include <stdio.h>
#include <math.h>

int main() {
    int n;
    scanf("%d", &n);
    __float128 s = 0;
    for (int i = 0; i < n; i++) {
        long double x;
        scanf("%llf", &x);
        x = sqrtl(x);
        s += x;
        printf("%.17llg\n", (long double) s);
    }
}