C2132113313331312121111331333132313331323133313223313231333133311233311   >>    C213211331333131212111133133313231333132313331322331323133313331123331   <<    C2132113313331312121111331333132313331323133313223313231333133311233313   >>      C2132113313331312121111331333132313331323133313223313231333133311233312   >>