using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        foreach (var item in GetAzaza().Where(i => ?).Select(i => ?))

        {

            Console.WriteLine(item.Code);

        }

    }

    private static IEnumerable<Azaza> GetAzaza()

    {

        return new[]

        {

            new Azaza { A = -1, B = .5D,    C = 1000000L,   Code = "1" },

            new Azaza { A = -2, B = 1.5D,   C = 100000L,    Code = "2" },

            new Azaza { A = 0,  B = .75D,   C = 10000L,     Code = "3" },

            new Azaza { A = 1,  B = -.25D,  C = 1000L,      Code = "4" },

            new Azaza { A = 2,  B = 5.5D,   C = 100L,       Code = "5" },

        };

    }

}

​

public class Azaza

{

    public int A {get;set;}

    public double B {get;set;}

    public long C {get;set;}

    public string Code {get;set;}

}