hi how to I do the below? 

```
int z = 1;
string one = "pc";
string two = z.ToString();
                    //what goes here
Console.Write("Host One:\tSent-{0}\tSuccess-{1}\tFail-{2}", xxxxx.numepings, pc1.numepings_s, pc1.numepings_f);
Console.WriteLine();

```

so in my code `pc1` is an instance of an object, what can i use in the line `//what goes here` and then in place of the `xxxxx` so that I can call the instance from the concanatated string variable `pc` and `int 1` ??