C312322331333132212111133133313331333133312121111331333121322331312131   >>    C31232233133313221211113313331333133313331212111133133312132233131213   <<    C312322331333132212111133133313331333133312121111331333121322331312133   >>      C312322331333132212111133133313331333133312121111331333121322331312132   >>