input: Write a function to filter a list of integers to include only those greater than 50 using a lambda expression in Python. The function should take a list of integers as input and return a new list containing only the integers that are greater than 50.
  assert filtered_list([45, 12, 52, 89, 33, 99])==[52, 89, 99]
  assert filtered_list([10, 20, 30, 40, 50, 60])==[60]
  assert filtered_list([51, 52, 53, 54, 55])==[51, 52, 53, 54, 55]
  assert filtered_list([49, 48, 47, 46, 45])==[]
  assert filtered_list([])==[]
output: def filtered_list(lst):
      return list(filter(lambda x: x > 50, lst))