Problem: Another Codeforces Round has just finished! It has gathered n participants, and according to the results, the expected rating change of participant i is a_i. These rating changes are perfectly balanced — their sum is equal to 0.

Unfortunately, due to minor technical glitches, the round is declared semi-rated. It means that all rating changes must be divided by two.

There are two conditions though: 

  * For each participant i, their modified rating change b_i must be integer, and as close to (a_i)/(2) as possible. It means that either b_i = ⌊ (a_i)/(2) ⌋ or b_i = ⌈ (a_i)/(2) ⌉. In particular, if a_i is even, b_i = (a_i)/(2). Here ⌊ x ⌋ denotes rounding down to the largest integer not greater than x, and ⌈ x ⌉ denotes rounding up to the smallest integer not smaller than x. 
  * The modified rating changes must be perfectly balanced — their sum must be equal to 0. 



Can you help with that?

Input

The first line contains a single integer n (2 ≤ n ≤ 13 845), denoting the number of participants.

Each of the next n lines contains a single integer a_i (-336 ≤ a_i ≤ 1164), denoting the rating change of the i-th participant.

The sum of all a_i is equal to 0.

Output

Output n integers b_i, each denoting the modified rating change of the i-th participant in order of input.

For any i, it must be true that either b_i = ⌊ (a_i)/(2) ⌋ or b_i = ⌈ (a_i)/(2) ⌉. The sum of all b_i must be equal to 0.

If there are multiple solutions, print any. We can show that a solution exists for any valid input.

Examples

Input


3
10
-5
-5


Output


5
-2
-3


Input


7
-7
-29
0
3
24
-29
38


Output


-3
-15
0
2
12
-15
19

Note

In the first example, b_1 = 5, b_2 = -3 and b_3 = -2 is another correct solution.

In the second example there are 6 possible solutions, one of them is shown in the example output.

Solution (in PYTHON3):

Solution:
#設定
import sys
input = sys.stdin.buffer.readline
con = 10 ** 9 + 7
INF = float("inf")

#入力受け取り
def getlist():
	return list(map(int, input().split()))


#処理内容
def main():
	N = int(input())
	a = [0] * N
	b = [0] * N
	for i in range(N):
		a[i] = int(input())
	p = 0
	q = 0
	for i in range(N):
		if a[i] >= 0:
			if a[i] % 2 != 0:
				if p % 2 == 0:
					b[i] = a[i] // 2
				else:
					b[i] = a[i] // 2 + 1
				p += 1
			else:
				b[i] = a[i] // 2
		else:
			if a[i] % 2 != 0:
				if q % 2 == 0:
					b[i] = a[i] // 2 + 1
				else:
					b[i] = a[i] // 2
				q += 1
			else:
				b[i] = a[i] // 2
	for i in range(N):
		print(b[i])

if __name__ == '__main__':
	main()