input: Write a python function to print multiplication tables for numbers from 1 to 10 and also specifically for the number 8.
  assert print_multiplication_tables() == None
output: def print_multiplication_tables():
      for i in range(1, 11):
          for j in range(1, 11):
              print(f"{i} * {j} = {i * j}")
          print()
      print("Multiplication table for 8:")
      for j in range(1, 11):
          print(f"8 * {j} = {8 * j}")