@@ -0,0 +1,249 @@
+#!/usr/local/bin/python%0A%0Adef sort_priority(num,pro):%0A  res=num%5B:%5D%0A  def helper(x):%0A    if x in pro:%0A      return (0,x)%0A    return (1,x)%0A  res.sort(key=helper)%0A  return res%0A%0Anumbers=%5B2,5,7,4,1,3,8,6%5D%0Agroup=%5B2,4,8%5D%0A%0Aprint sort_priority(numbers,group)%0A

Add item15.