C312322331333132212111133133313331333133312121111331333132213223333121   >>    C31232233133313221211113313331333133313331212111133133313221322333312   <<    C312322331333132212111133133313331333133312121111331333132213223333123   >>      C312322331333132212111133133313331333133312121111331333132213223333122   >>