---

def move_zeroes(nums):
    k = 0

    for i in range(len(nums)):
        if nums[i] != 0:
            nums[k] = nums[i]
            k += 1

    for i in range(k, len(nums)):
        nums[i] = 0


nums = list(map(int, input().split()))
move_zeroes(nums)
print(nums)