input: Write a function to create a lambda expression in Python to filter a list of integers greater than 50. The function should take a list of integers as input and return the filtered list.
  assert filtered_list([45, 12, 52, 89, 33, 99])==[52, 89, 99]
  assert filtered_list([1, 2, 3, 4, 5, 6, 7, 8, 9])==[]
  assert filtered_list([51, 52, 53, 54, 55])==[51, 52, 53, 54, 55]
  assert filtered_list([50, 50, 50, 50, 50, 50])==[]
  assert filtered_list([])==[]
output: return list(filter(lambda x: x > 50, lst))