C123132112322333121111113121111331333133313231333133312133311212133131332321311   >>    C12313211232233312111111312111133133313331323133313331213331121213313133232131   <<    C123132112322333121111113121111331333133313231333133312133311212133131332321313   >>      C123132112322333121111113121111331333133313231333133312133311212133131332321312   >>