C1111133313331323223313331333133313331333131211113313331211233331   >>    C111113331333132322331333133313331333133313121111331333121123333   <<    C1111133313331323223313331333133313331333131211113313331211233333   >>      C1111133313331323223313331333133313331333131211113313331211233332   >>