Make this code run faster - c#

Attached? is a c# code that I need to make run faster.? The new code must do the same thing but it should run faster.? ? Along with the faster code, you will also turn in the excel? sheet (or notepad) which? should compare the speed of the old and new code for 1 time run, 3 times run and? 5 times run. Code is simple, and must run under VS2005. If this works out then I have several other pieces that I need to make run faster and you will get those too. Thanks