C3123223313331322121111331333133313331311331133133313113313332211   >>    C312322331333132212111133133313331333131133113313331311331333221   <<    C3123223313331322121111331333133313331311331133133313113313332213   >>      C3123223313331322121111331333133313331311331133133313113313332212   >>