input: Write a python function to generate a 12x12 multiplication table and print it formatted with right-aligned numbers.
  assert multiplication_table() is None
output: def multiplication_table():
      table = [[(i + 1) * (j + 1) for j in range(12)] for i in range(12)]
      for row in table:
          print(" ".join(f"{num:4}" for num in row))