C3123223313331322121111331333133313331333121211113312111111313212331   >>    C312322331333132212111133133313331333133312121111331211111131321233   <<    C3123223313331322121111331333133313331333121211113312111111313212333   >>      C3123223313331322121111331333133313331333121211113312111111313212332   >>