using System;
using System.Linq;
namespace t29737665
{
internal class Program
{
private static void Main()
{
Console.WriteLine("Enter A and B:");
var A = int.Parse(Console.ReadLine());
var B = int.Parse(Console.ReadLine());
Enumerable
.Range(A, B - A + 1)
.Where(n => n < 0)
.Where(n => n % 2 == 0)
.ToList()
.ForEach(Console.WriteLine);
}
}
}