import sys
import math

def main():
    data = sys.stdin.read().split()
    N = int(data[0])
    x_list = list(map(int, data[1:N+1]))
    
    prefix = [0.0] * (N + 1)
    for i in range(1, N+1):
        x = x_list[i-1]
        prefix[i] = prefix[i-1] + math.sqrt(x)
    
    for k in range(1, N+1):
        s = prefix[k]
        s_str = "{0:.16f}".format(s)
        s_str = s_str.rstrip('0').rstrip('.')
        print(s_str)

if __name__ == "__main__":
    main()