<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def bounceStarter(url, nextSearch):
 """Get start URL by "bouncing" back and forth one time."""

    @classmethod
    def _starter(cls):
        """Get bounced start URL."""
        data = cls.getPage(url)
        url1 = cls.fetchUrl(url, data, cls.prevSearch)
        data = cls.getPage(url1)
        return cls.fetchUrl(url1, data, nextSearch)
    return _starter