C3123223313331322121111331333133313231323223313331323331311331311212321   >>    C312322331333132212111133133313331323132322331333132333131133131121232   <<    C3123223313331322121111331333133313231323223313331323331311331311212323   >>      C3123223313331322121111331333133313231323223313331323331311331311212322   >>