import sys
from decimal import Decimal, getcontext

getcontext().prec = 30  # Set a high precision

def main():
    input = sys.stdin.read().split()
    n = int(input[0])
    x_list = list(map(int, input[1:n+1]))
    
    current_sum = Decimal(0)
    sums = []
    for x in x_list:
        sqrt_x = Decimal(x).sqrt()
        current_sum += sqrt_x
        sums.append(current_sum)
    
    for s in sums:
        s_str = format(s, 'f')  # Convert to fixed-point string
        # Remove trailing zeros and unnecessary decimal point
        if '.' in s_str:
            s_str = s_str.rstrip('0').rstrip('.')
        print(s_str)

if __name__ == "__main__":
    main()