C31232233133313221211113313331333132313331322121111331333112222233131   >>    C3123223313331322121111331333133313231333132212111133133311222223313   <<    C31232233133313221211113313331333132313331322121111331333112222233133   >>      C31232233133313221211113313331333132313331322121111331333112222233132   >>