using System;

using System.Linq.Expressions;

using System.Collections;

using System.Collections.Generic;

using System.Reflection;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("****************** C# Equivalent Output **************************\n\n");

​

        int sum = 3 + 6;

        Console.WriteLine(sum);

​

        Console.WriteLine("\n\n***************** Expression Tree Output **************************\n\n");

​

        Expression sumExpr = Expression.Add(

            Expression.Constant(3),

            Expression.Constant(6)

        );

        Console.WriteLine(Expression.Lambda<Func<int>>(sumExpr).Compile()());

​

    }

​

}