C31232233133313221211113313331333133313331212111133133311233133313331313231211   >>    C3123223313331322121111331333133313331333121211113313331123313331333131323121   <<    C31232233133313221211113313331333133313331212111133133311233133313331313231213   >>      C31232233133313221211113313331333133313331212111133133311233133313331313231212   >>