C3123223313331322121111331333133313331333121211113313331233132311212111   >>    C312322331333132212111133133313331333133312121111331333123313231121211   <<    C3123223313331322121111331333133313331333121211113313331233132311212113   >>      C3123223313331322121111331333133313331333121211113313331233132311212112   >>