input: Write a function to read a list of integers and print its elements in reversed order.
  assert reversed_list([1, 3, 6, 8, 10]) == [10, 8, 6, 3, 1]
  assert reversed_list([20, 40, 60, 80]) == [80, 60, 40, 20]
  assert reversed_list([10, 10, 10, 10]) == [10, 10, 10, 10]
  assert reversed_list([7]) == [7]
  assert reversed_list([]) == []
output: def reversed_list(lst):
      return lst[::-1]