input: def add_positive_feedback(code: str) -> str:
      """Given a Python program as a string, modify it to include a positive feedback loop.
      The feedback mechanism should print a congratulatory message when a certain condition
      is met. In the provided example, when the loop counter reaches 10, it prints "You've got it!".
  
      >>> add_positive_feedback('for i in range(10):\\n    print("hello")')
      'for i in range(10):\\n    print("hello")\\n    i += 1\\n    if i == 10:\\n        print("You\'ve got it!")'
      """
output:     lines = code.split('\n')
      for i in range(len(lines)):
          if 'for' in lines[i]:
              loop_var = lines[i].split()[1].split(' ')[0]
              lines[i] += f'\n    {loop_var} += 1'
              lines[i] += f'\n    if {loop_var} == 10:'
              lines[i] += '\n        print("You\'ve got it!")'
              break
      return '\n'.join(lines)