C3123223313331322121111331333133313231333132212111112111113311231132311   >>    C312322331333132212111133133313331323133313221211111211111331123113231   <<    C3123223313331322121111331333133313231333132212111112111113311231132313   >>      C3123223313331322121111331333133313231333132212111112111113311231132312   >>