input: Write a function to create a lambda expression in Python that filters a list of integers to include only those greater than 50. Apply this lambda expression using the filter function and return the filtered list. If the input list is empty, return an empty list.
  
  assert filtered_list([45, 12, 52, 89, 33, 99]) == [52, 89, 99]
  assert filtered_list([51, 52, 53, 54]) == [51, 52, 53, 54]
  assert filtered_list([45, 33, 22, 11]) == []
  assert filtered_list([]) == []
output: def filtered_list(lst):
      return list(filter(lambda x: x > 50, lst))