class Solution:
def optimalDivision(self, nums: List[int]) -> str:
if len(nums) == 1:
return str(nums[0])
elif len(nums) == 2:
return "%d/%d" % (nums[0], nums[1])
else:
return "%d/(%s)" % (nums[0], '/'.join([str(i) for i in nums[1:]]))