import sys
import math

def main():
    input = sys.stdin.read().split()
    n = int(input[0])
    x_list = list(map(int, input[1:n+1]))
    sum_total = 0.0
    for x in x_list:
        sum_total += math.sqrt(x)
        # Print with 17 decimal places to ensure sufficient precision
        print("{0:.17f}".format(sum_total))
        
if __name__ == "__main__":
    main()