using System;
using System.Linq;
using System.Linq.Expressions;
using System.Collections.Generic;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
			int[] arr = { 1, 2, 3, 4, 5, 6, 7, 8 };
			var param = Expression.Parameter(typeof(int), "x");
			var modexp = Expression.Modulo(param, Expression.Constant(2));
			var body = Expression.Equal(modexp, Expression.Constant(0));
			Expression<Func<int, bool>> cond = Expression.Lambda<Func<int, bool>>(body, param);
			var query = arr.Where(cond.Compile());
			foreach (int x in query) Console.Write(x + "\t");
        }
    }
}