[C#] How to click on element without id?

Question

C++ / C#

There are two elements, you just need to click on them, but because they don't have an id - GetElementById("test").InvokeMember("click");
does not work. How then can this click be implemented differently?
It's only a few days in C#, don't throw stones, but I need to know the solution.
Here are the two elements:

<a href="тут ссылка" class="title-subject">test</a>

and

<a href="ссылка" target="_blank" tabindex="-1" rel="external">asd</a>

Answer 1

So you collect everything <a>...</a>and filters out of them on a whim what you need.