import sys
import numpy as np
import time

read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

N = int(readline())
nums = np.array(read().split(), np.float64)
np.sqrt(nums, out=nums)
nums = nums.astype(np.longdouble)
np.cumsum(nums, out=nums)

for x in nums.tolist():
    print(str(x)[:17])