import sys
import math

def main():
    data = sys.stdin.read().split()
    n = int(data[0])
    xs = list(map(int, data[1:n+1]))
    sum_so_far = 0.0
    res = []
    for x in xs:
        sum_so_far += math.sqrt(x)
        res.append("{0:.17f}".format(sum_so_far))
    print('\n'.join(res))

if __name__ == "__main__":
    main()