import sys
import math

def main():
    input = sys.stdin.read().split()
    n = int(input[0])
    x = list(map(int, input[1:n+1]))
    sum_ = 0.0
    for xi in x:
        sum_ += math.sqrt(xi)
        print("{0:.17g}".format(sum_))
        
if __name__ == "__main__":
    main()