C31232233133313221211113313331333133313331212111133133311233133313111123311   >>    C3123223313331322121111331333133313331333121211113313331123313331311112331   <<    C31232233133313221211113313331333133313331212111133133311233133313111123313   >>      C31232233133313221211113313331333133313331212111133133311233133313111123312   >>