C3123223313331322121111331333133313331331121111132322331333132212311   >>    C312322331333132212111133133313331333133112111113232233133313221231   <<    C3123223313331322121111331333133313331331121111132322331333132212313   >>      C3123223313331322121111331333133313331331121111132322331333132212312   >>