C3123223313331322121111331333133313331333121211113313233313132322331321   >>    C312322331333132212111133133313331333133312121111331323331313232233132   <<    C3123223313331322121111331333133313331333121211113313233313132322331323   >>      C3123223313331322121111331333133313331333121211113313233313132322331322   >>