C111113331333132322331333133313331333133313121111331333121111331311331311112121   >>    C11111333133313232233133313331333133313331312111133133312111133131133131111212   <<    C111113331333132322331333133313331333133313121111331333121111331311331311112123   >>      C111113331333132322331333133313331333133313121111331333121111331311331311112122   >>