C31232233133313221211113313331333132313232233133313123231322331   >>    C3123223313331322121111331333133313231323223313331312323132233   <<    C31232233133313221211113313331333132313232233133313123231322333   >>      C31232233133313221211113313331333132313232233133313123231322332   >>