C111123313121111121111331333133313331323132333133313121111331333133313223322231   >>    C11112331312111112111133133313331333132313233313331312111133133313331322332223   <<    C111123313121111121111331333133313331323132333133313121111331333133313223322233   >>      C111123313121111121111331333133313331323132333133313121111331333133313223322232   >>