C31232233133313221211113313331333132313331322121111331312113311212131   >>    C3123223313331322121111331333133313231333132212111133131211331121213   <<    C31232233133313221211113313331333132313331322121111331312113311212133   >>      C31232233133313221211113313331333132313331322121111331312113311212132   >>