import math
import sys

def main():
    n = int(sys.stdin.readline())
    x = [int(sys.stdin.readline()) for _ in range(n)]
    
    sum_total = 0.0
    compensation = 0.0
    
    for xi in x:
        term = math.sqrt(xi)
        # Kahan summation steps
        y = term - compensation
        t = sum_total + y
        compensation = (t - sum_total) - y
        sum_total = t
        
        # Formatting the output
        s = "{0:.17f}".format(sum_total)
        integer_part, decimal_part = s.split('.')
        decimal_part = decimal_part.rstrip('0')
        if not decimal_part:
            decimal_part = '0'
        print(f"{integer_part}.{decimal_part}")

if __name__ == "__main__":
    main()