input: def clean_emails(original_list: List[str]) -> List[str]:
      """Cleans a list of emails by removing any characters after '+' and before '.com' or '.uk'.
      >>> clean_emails(['bob@example.com', 'alice+bob@cafe.com', 'bob@gmail.com.uk', 'bob+alice@example'])
      ['bob@example.com', 'alice@cafe.com', 'bob@gmail.com', 'bob@example']
      """
output:     cleaned_list = []
      for email in original_list:
          if '+' in email:
              email = email[:email.index('+')]
          if '.com' in email:
              email = email[:email.index('.com') + 4]
          elif '.uk' in email:
              email = email[:email.index('.uk') + 3]
          cleaned_list.append(email)
      return cleaned_list