import sys
from decimal import Decimal, getcontext

def main():
    getcontext().prec = 30  # Setting precision high enough to handle required accuracy

    data = sys.stdin.read().split()
    n = int(data[0])
    x_list = list(map(int, data[1:n+1]))
    
    sum_s = Decimal(0)
    sums = []
    for x in x_list:
        sqrt_x = Decimal(x).sqrt()
        sum_s += sqrt_x
        sums.append(sum_s)
    
    for s in sums:
        # Format to 17 decimal places
        print("{0:.17f}".format(s))

if __name__ == "__main__":
    main()