import decimal
import sys

decimal.getcontext().prec = 25  # Set sufficient precision to handle up to 1e18 accurately

def main():
    data = sys.stdin.read().split()
    n = int(data[0])
    xs = data[1:n+1]
    sum_total = decimal.Decimal(0)
    output = []
    for x_str in xs:
        x = decimal.Decimal(x_str)
        sqrt_x = x.sqrt()
        sum_total += sqrt_x
        # Format to 17 decimal places, ensuring trailing zeros are included
        output.append("{0:.17f}".format(sum_total))
    print('\n'.join(output))

if __name__ == '__main__':
    main()