C111123313121111121111331323133313331333132333131133132233312231   >>    C11112331312111112111133132313331333133313233313113313223331223   <<    C111123313121111121111331323133313331333132333131133132233312233   >>      C111123313121111121111331323133313331333132333131133132233312232   >>