C3123223313331322121111331333133313331333121211113313331323331333132313212121   >>    C312322331333132212111133133313331333133312121111331333132333133313231321212   <<    C3123223313331322121111331333133313331333121211113313331323331333132313212123   >>      C3123223313331322121111331333133313331333121211113313331323331333132313212122   >>