using System;

using System.Collections.Generic;

using Newtonsoft.Json.Linq;

​

class Program

{

    static void Main()

    {

        string jsonInput = "{\"data\":\"key=IAfpK, age=2, key=WNVdi, age=1, key=jp9zt, age=47, key=jp9zt, age=1\"}";

​

        // Parse the JSON using JObject

        var jObject = JObject.Parse(jsonInput);

        string data = jObject["data"].ToString();

​

        string[] parts = data.Split(new[] { ", " }, StringSplitOptions.None);

        List<KeyValuePair<string, int>> keyAgePairs = new List<KeyValuePair<string, int>>();

​

        for (int i = 0; i < parts.Length; i += 2)

        {

            string key = parts[i].Split('=')[1];

            int age = int.Parse(parts[i + 1].Split('=')[1]);

​

            keyAgePairs.Add(new KeyValuePair<string, int>(key, age));

        }

​

        Console.WriteLine("Before filtering:");

        foreach (var pair in keyAgePairs)

        {

            Console.WriteLine($"key={pair.Key}, age={pair.Value}");

        }

​

        // Remove entries where age == 1

        keyAgePairs.RemoveAll(pair => pair.Value == 1);

​

        Console.WriteLine("After filtering (age != 1):");

        foreach (var pair in keyAgePairs)

        {

            Console.WriteLine($"key={pair.Key}, age={pair.Value}");

        }

    }

}

​