class Solution(object):
    def moveZeroes(self, nums):
        """
        :type nums: List[int]
        :rtype: void Do not return anything, modify nums in-place instead.
        """
        i=0
        for n in nums:
            if n!=0:
                nums[i]=n
                i+=1 
        while
 
 i < len(nums):
            nums[i]=0
            i+=1