#include <cstdio>
#include <cmath>

int main() {
    int n;
    long x[1000000];
    scanf("%d", &n);
    for (int i = 0; i < n; i++) {
        scanf("%ld", &x[i]);
    }
    __float128 s = 0;
    for (int i = 0; i < n; i++) {
        s += sqrtl(x[i]);
        printf("%.17llg\n", (long double) s);
    }
}