How do I get the last four characters from a string in C#?

Question

Suppose I have a string:

\"34234234d124\"

I want to get the last four characters of this string which is \"d124\". I can use <

Answer 1

string var = "12345678";

if (var.Length >= 4)
{
    var = var.substring(var.Length - 4, 4)
}

// result = "5678"