using System;

public class Program

{

    public static void Main()

    {

        var a = 1;

        var b = 1;

        PlusPlus(ref a);

        PlusOne(ref b);

        Console.WriteLine(a);

        Console.WriteLine(b);

    }

    public static void PlusPlus(ref int val)

    {

        val++;  

    }

    public static void PlusOne(ref int val)

    {

        val += 1;   

    }

}