nums_amt = int(input())
num_list = list(map(int, input().split()))
new_list = []
zero_cnt = 0
for index in range(nums_amt):
    if num_list[index] != 0:
        new_list.append(num_list[index])
    else:
        zero_cnt += 1
for _ in range(zero_cnt):
    new_list.append(0)
print(*new_list)