using System;

using System.Globalization;

using HandlebarsDotNet;

using HandlebarsDotNet.Helpers;

public class Program

{

    public static void Main()

    {

        var handlebarsContext = Handlebars.Create();

        handlebarsContext.Configuration.FormatProvider = CultureInfo.InvariantCulture;

        HandlebarsHelpers.Register(handlebarsContext);

        var idTemplate = handlebarsContext.Compile("{{#if (Math.LessThan CostCenter.length 7)}}{{String.Substring CostCenter 0 3}}-{{String.Substring CostCenter 0 3}}-{{String.Substring CostCenter 3 3}}-EK{{else}}{{String.Substring CostCenter 0 3}}-{{String.Substring CostCenter 0 3}}-{{String.Substring CostCenter 4 3}}-EK{{/if}}");

        var testValue1 = new TestClass { CostCenter = "1234567" };

        var testValue2 = new TestClass { CostCenter = "123456" };

        Console.WriteLine(idTemplate(testValue1));

        Console.WriteLine(idTemplate(testValue2));

    }

    public class TestClass

    {

        public string CostCenter {get;set;}

    }

}