C3123223313331322121111331333133313231333132212113313232233112311   >>    C312322331333132212111133133313331323133313221211331323223311231   <<    C3123223313331322121111331333133313231333132212113313232233112313   >>      C3123223313331322121111331333133313231333132212113313232233112312   >>