C31231211111133131211113313331312111113331311331322331323222333121   >>    C3123121111113313121111331333131211111333131133132233132322233312   <<    C31231211111133131211113313331312111113331311331322331323222333123   >>      C31231211111133131211113313331312111113331311331322331323222333122   >>