using System;

public class Program

{

    public void Main()

    {

        var counter = 1;

        var word = "var";

        Increment(counter);

        ToUpper(ref word);

        Console.WriteLine(word + " " + counter);

        Increment(ref counter);

        ToUpper(word);

        Console.WriteLine(word + " " + counter);

    }

    void Increment(int value)

    {

        value++;

    }

    void Increment(ref int value)

    {

        value++;

    }

    void ToUpper(string value)

    {

        value = value.ToUpper();

    }

    void ToUpper(ref string value)

    {

        value = value.ToUpper();

    }

}