C31232233133313221211113313331333132313331322121111112232233121   >>    C3123223313331322121111331333133313231333132212111111223223312   <<    C31232233133313221211113313331333132313331322121111112232233123   >>      C31232233133313221211113313331333132313331322121111112232233122   >>