input: def sort_ascending(nums: List[int]) -> List[int]:
      """ Implement a sorting algorithm that takes a list of integers as input and outputs the list sorted in ascending order.
      >>> sort_ascending([3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5])
      [1, 1, 2, 3, 3, 4, 5, 5, 5, 6, 9]
      >>> sort_ascending([7, 2, 9, 4, 8, 1, 3, 5, 6])
      [1, 2, 3, 4, 5, 6, 7, 8, 9]
      """
output:     for i in range(len(nums)):
          for j in range(i + 1, len(nums)):
              if nums[i] > nums[j]:
                  nums[i], nums[j] = nums[j], nums[i]
      return nums