C111123313121111121111331333133313331323132333132323132313223313123231   >>    C11112331312111112111133133313331333132313233313232313231322331312323   <<    C111123313121111121111331333133313331323132333132323132313223313123233   >>      C111123313121111121111331333133313331323132333132323132313223313123232   >>