input: 
  def optimize_program(numbers: list) -> str:
      """ Optimize the given program to print each number in the list on a new line.
      >>> optimize_program([1, 2, 3, 4, 5, 6])
      'print(*numbers, sep=\'\n\')'
      >>> optimize_program([7, 8, 9])
      'print(*numbers, sep=\'\n\')'
      """
  
output:     return 'print(*numbers, sep=\'\\n\')'