C3132121111331312113313331333133313331333121111331333133313223313131   >>    C313212111133131211331333133313331333133312111133133313331322331313   <<    C3132121111331312113313331333133313331333121111331333133313223313133   >>      C3132121111331312113313331333133313331333121111331333133313223313132   >>