using System;

using Newtonsoft.Json;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        UtilityHelper.AddDefine1("a","b");

        UtilityHelper.AddDefine2("c","1");

        UtilityHelper.Create();

    }

    public class UtilityHelper{

        private static Dictionary<string,string> define1;

        private static Dictionary<string,string> define2;

        private static Dictionary<string,string> define3;

        public static void AddDefine1(string Key,string Val)

        {

            if (define1==null )

                define1 = new Dictionary<string,string>();

            if (define1.ContainsKey(Key)==false)

                define1.Add(Key,Val);

        }

        public static void AddDefine2(string Key,string Val)

        {           

            if (define2==null )

                define2 = new Dictionary<string,string>();

            if (define2.ContainsKey(Key)==false)

                define2.Add(Key,Val);

        }

        public static void AddDefine3(string Key,string Val)

        {

            if (define3==null )

                define3 = new Dictionary<string,string>();

            if (define3.ContainsKey(Key)==false)

                define3.Add(Key,Val);

        }

        public static void Create()

        {

            try

            {

                Console.WriteLine($"{define1.Keys.Count()}");

                Console.WriteLine($"{define2.Keys.Count()}");

                Console.WriteLine($"{define3.Keys.Count()}");

            }catch{

            }

            finally{

                define1.Clear() ;

                define2.Clear() ;

                define3.Clear() ;

            }

        }

    }

}