C111123313121111121111331333133313331333132233133313223331311311   >>    C11112331312111112111133133313331333133313223313331322333131131   <<    C111123313121111121111331333133313331333132233133313223331311313   >>      C111123313121111121111331333133313331333132233133313223331311312   >>