import sys
from decimal import Decimal, getcontext

getcontext().prec = 35  # Sufficient precision to handle the required error margin

def main():
    input = sys.stdin.read().split()
    n = int(input[0])
    xs = input[1:n+1]
    
    sum_so_far = Decimal(0)
    for x_str in xs:
        x = Decimal(x_str)
        sum_so_far += x.sqrt()
        # Format the sum to remove trailing zeros and unnecessary decimal points
        sum_str = format(sum_so_far, 'f').rstrip('0').rstrip('.')
        print(sum_str)

if __name__ == "__main__":
    main()