using System;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var query = Enumerable

            .Range(1,5)

            .Select( (n, i) =>

               {

                   var result = new JObject();

                   result.Add($"match_{i}", n);

                   return result;

               });

        Console.WriteLine(

            JsonConvert.SerializeObject(

                query, 

                Formatting.Indented));

    }

}