how to add contacts supper fast in telegram with c#?

I have 200000 contacts(phone number) in the notepad. in fact, I wanna read numbers from notepad then add they very fast in the telegram, for example, I wanna add 20000 phone number about five minutes.I wanna do it with "winform" but I don't know how can I add super fast numbers in the telegram. in generally, is it possible?

this is telegram API

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Compétences : Programmation C#, Bureau Windows

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Concernant l'employeur :
( 0 commentaires ) Canada

Nº du projet : #12684127

11 freelance font une offre moyenne de $53 pour ce travail


Hi I would be happy to help with your project :) I have over 10 years of experience with C# and C++, I specialize in Windows Forms applications and GUI design. I also have lots of experience with asynchronous file I/O Plus

%bids___i_sum_sub_32% %project_currencyDetails_sign_sub_33% USD en 1 jour
(103 Commentaires)

Hi! I'm experienced with .NET development, looks like there's a feasable path to get this job done. The only caveat is that I will need to pick up Telegram API from documentation. I have adjusted budget to cover som Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(55 Commentaires)

Hello, In interested to work on this. Thanks, Sheik

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 2 jours
(50 Commentaires)

Hello, I hope you doing very well! I have gone through the description and would like to provide a quality solution using 5+ years of professional experience in required skills. (.NET/ASP.NET - MVC, EF, SQL, C#). Plus

%bids___i_sum_sub_32% %project_currencyDetails_sign_sub_33% USD en 1 jour
(11 Commentaires)

Dear Hiring Manager, Thanks for looking at my proposal. Project Understanding:- You need to write a program that will read values from note pad and pass to telegram API for sending telegram. I can write scr Plus

%bids___i_sum_sub_32% %project_currencyDetails_sign_sub_33% USD en 1 jour
(6 Commentaires)

Hi my name is Alex . I have 10 years experience C#.NET and dozens of completed projects. I I suggest use Parallel library for parse data in notepad file and then use API([login to view URL]) telegram add con Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 10 jours
(1 Évaluation)

Hey, I have a lot of experience for working with telegram api/bot's, optimization and would like to suggest myself to realize that project via c# with perfect quality and working speef. Many thanks, Vlad.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 5 jours
(1 Évaluation)

hi there, I am expert in api development and working with api. kindly start this with me. I can easily do this. thanks...

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 2 jours
(0 Commentaires)

I have four years experience in C#, I'm new in freelancer, so I just want good start in this. Thank You if You choose me.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 2 jours
(0 Commentaires)

I am very interested in making a reputation, so I will work hard on giving you the great quality product. I will provide you with: -a working windows form application; -fixing all of the buggs if they occur.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 2 jours
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%bids___i_sum_sub_32% %project_currencyDetails_sign_sub_33% USD en 1 jour
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