C1111133313331323223313331333133313331333131211113313331311233331   >>    C111113331333132322331333133313331333133313121111331333131123333   <<    C1111133313331323223313331333133313331333131211113313331311233333   >>      C1111133313331323223313331333133313331333131211113313331311233332   >>