❔ How to calculate event expression?

var result = a+b-c+d-c+d-b+a;

var result = a+b-c+d-c+d-b+a;

a,b,c,d

a,b,c,d

are all events, and each of them contains more than one method.
So what is result like?

❔ How to calculate event expression? - C#