C31232233133313221211113313331333132313331322121111121111113313332223133311211   >>    C3123223313331322121111331333133313231333132212111112111111331333222313331121   <<    C31232233133313221211113313331333132313331322121111121111113313332223133311213   >>      C31232233133313221211113313331333132313331322121111121111113313332223133311212   >>