using System;

​

public class Program

{

    public static void Main()

    {

        Maths m1 = new Maths();

        int[] result=new int[2];

        int a = 30, b = 20;

        result=m1.MultipleReturns(a, b);

        Console.WriteLine("max=" + result[0]+" result="+result[1]);

    }

}

public class Maths

{

    public int[] MultipleReturns(int a, int b)

    {

        int max,result;

        if (a < b)

        {

            max = a;

            result=a + b;

        }

        else

        {

            max = b;

            result=a - b;

        }

        int[] returnvalue=new int[]{result,max};

        return returnvalue;

    }

}