C1111133313331323223313331333133313331333131211113313331323113311   >>    C111113331333132322331333133313331333133313121111331333132311331   <<    C1111133313331323223313331333133313331333131211113313331323113313   >>      C1111133313331323223313331333133313331333131211113313331323113312   >>