C111123313121111121111331333133313121111113223313331333132313331323233313223321   >>    C11112331312111112111133133313331312111111322331333133313231333132323331322332   <<    C111123313121111121111331333133313121111113223313331333132313331323233313223323   >>      C111123313121111121111331333133313121111113223313331333132313331323233313223322   >>