input: Write a function to filter a list of integers and return a new list containing only the integers greater than 50. Use a lambda function to achieve this.
  assert filtered_list([45, 12, 52, 89, 33, 99])==[52, 89, 99]
  assert filtered_list([5, 50, 55, 60, 65])==[55, 60, 65]
  assert filtered_list([70, 75, 80, 85])==[70, 75, 80, 85]
  assert filtered_list([49, 48, 47, 46])==[]
  assert filtered_list([])==[]
output: def filtered_list(lst):
      return list(filter(lambda x: x > 50, lst))