from decimal import Decimal, getcontext
import sys

def main():
    # Set high precision to ensure accuracy
    getcontext().prec = 40  # Sufficient for 1e-15 precision

    # Read all input at once for efficiency
    data = sys.stdin.read().split()
    n = int(data[0])
    x_list = data[1:n+1]

    # Precompute square roots and sums
    current_sum = Decimal(0)
    sums = []
    for xi_str in x_list:
        xi = Decimal(xi_str)
        sqrt_xi = xi.sqrt()
        current_sum += sqrt_xi
        sums.append(current_sum)

    # Format each sum for output
    for s in sums:
        s_str = format(s, 'f').rstrip('0').rstrip('.') if '.' in str(s) else str(s)
        print(s_str if '.' in s_str else s_str + '.0')

if __name__ == "__main__":
    main()