C31231211111133131211113313331333133313331323223313113313111121   >>    C3123121111113313121111331333133313331333132322331311331311112   <<    C31231211111133131211113313331333133313331323223313113313111123   >>      C31231211111133131211113313331333133313331323223313113313111122   >>