text:  class Solution(object):
      def XXX(self, nums1, m, nums2, n):
          """
          :type nums1: List[int]
          :type m: int
          :type nums2: List[int]
          :type n: int
          :rtype: None Do not return anything, modify nums1 in-place instead.
          """
          nums1[:]=nums1[:m]+nums2[:n]
          nums1.sort()
  code block
  
  