C3123223313331322121111331311331333133313331311331333132313211221   >>    C312322331333132212111133131133133313331333131133133313231321122   <<    C3123223313331322121111331311331333133313331311331333132313211223   >>      C3123223313331322121111331311331333133313331311331333132313211222   >>