C3123223313331322121111331311331333133313331311331333133323311321   >>    C312322331333132212111133131133133313331333131133133313332331132   <<    C3123223313331322121111331311331333133313331311331333133323311323   >>      C3123223313331322121111331311331333133313331311331333133323311322   >>