valuetypes.cs

using System;
					
public class Program
{
	static void MySalary(int friendsSalary)
	{
		friendsSalary +=  200;
	
		Console.WriteLine("My Salary "+ friendsSalary);
	}
	
	public static void Main()
	{
		 int friendsSalary = 100;

		Console.WriteLine("My Friends Salary " + friendsSalary);
		
		MySalary(friendsSalary);
		
		Console.WriteLine("My Friends Salary " +friendsSalary);
	}
}

//OutPut
/* My Friends Salary 100
My Salary 300
My Friends Salary 100 
*/