import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline

N = int(readline())
nums = map(int, read().split())
ans = [0.0] * N
s = 0
for i,x in enumerate(nums):
    s += x**.5
    ans[i] = s

S = '\n'.join(map(str, ans))
print(S)