C31232233133313221211113313331333133313331212111113331312233111   >>    C3123223313331322121111331333133313331333121211111333131223311   <<    C31232233133313221211113313331333133313331212111113331312233113   >>      C31232233133313221211113313331333133313331212111113331312233112   >>