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Author Topic: What languages do I need for blockchain programming?  (Read 569 times)
Nano1778
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January 04, 2019, 10:42:52 AM
Merited by OgNasty (1), o_e_l_e_o (1)
 #1

I am trying to get into blockchain programming from having no programming experience, right now I am slowly learning C++, once I feel a little comfortable with it I am going to start learning blockchain development from courses regardless of the languages they use (which shouldn't be a problem because learning C++ is to give me the knowledge of programming in general and to apply C++ as well). But I see all of these different githubs and courses that use javascript and javascript derived languages (node.js, react.js, etc), those that use c++, those that use python, those that use GO, and I am at a loss. What should I learn exactly? Do I need to know all of these languages for not too complex blockchain applications?

My plan was to just learn c++ and then start studying the blockchain programming while learning the syntax of other languages as I need them, but how can you make a blockchain, cryptocurrency, explorer, wallet, etc utilizing all of the languages above? Do I need to?
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January 04, 2019, 01:00:45 PM
Merited by DarkStar_ (4), ETFbitcoin (1), o_e_l_e_o (1), Heisenberg_Hunter (1), DdmrDdmr (1)
 #2

I am trying to get into blockchain programming from having no programming experience, right now I am slowly learning C++, once I feel a little comfortable with it I am going to start learning blockchain development from courses regardless of the languages they use (which shouldn't be a problem because learning C++ is to give me the knowledge of programming in general and to apply C++ as well). But I see all of these different githubs and courses that use javascript and javascript derived languages (node.js, react.js, etc), those that use c++, those that use python, those that use GO, and I am at a loss. What should I learn exactly? Do I need to know all of these languages for not too complex blockchain applications?

My plan was to just learn c++ and then start studying the blockchain programming while learning the syntax of other languages as I need them, but how can you make a blockchain, cryptocurrency, explorer, wallet, etc utilizing all of the languages above? Do I need to?
Hi,

I do think that learning C/C++ as the first language is the best way to start. By being able to read C++ you can read the whole bitcoin-core code which is, I think, what you mean by "blockchain programing".

But you are confused with the term "blockchain" : a block chain is a database and in most cases just a set of transactions, you won't "programm a blockchain" as you won't programm a MariaDB. However you can use datas from a MariaDB database, or from a block chain for an application or interact with it : here you can differenciate two things.

1) You want to know how Bitcoin (the network, defined by a protocol) works and C++ is the good way to go.
2) You want to make some mobile or web applications which would interact with the Bitcoin network (or another, like Ethereum or Stellar) and in order to do so a scripting language in more often used (mostly Javascript).

Theses two paths are not incompatible but it is easier (required ^^) to go from 1) 2) than from to 2) to 1).

To conclude I would recommend you to learn and practice C++, trying to learn some parts of bitcoin-core (the reference implementation of the Bitcoin protocol) and then to choose what you want to do. Check this thread it can helps you to start with Bitcoin.

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January 04, 2019, 01:09:24 PM
 #3

In the blockchain developement zone, best-known programming languages that can be used in the making of blockchain are:
C++ most known coding language.
Java used in website designing as it is easy to connect the link between blocks of information.
Python can perform many tasks with a single command and it makes the work of building blocks with relevant information and linking them together so much easier.
Ruby enables the use of a mix of languages to create a blockchain that cannot be easily hacked by its users.
Solidity :
Quote
Solidity is a contract-based language that is primarily used to enhance the use of EVM machines. One of the reasons why programmers prefer using this language to build the blockchain is the fact that it can catch hold of any iteration at the time of coding. It saves you a lot of time while creating the message to send across to another user. You can easily procure information and tutorials on the language that makes it accessible to the masses. It is one of the best expressions that you can use for smart contracts or blockchain for that matter.
Source: https://dzone.com/articles/what-are-the-top-5-blockchain-programming-language

Java, Python, & Ruby are generally easier for newcomers as they have less of a learning curve while C++ & Solidity usually take more time to learn.


*am not a programmer but just trying to share ideas based on my daily searches in the web, please correct me if you find something wrong.

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January 04, 2019, 01:27:39 PM
 #4

In the blockchain developement zone, best-known programming languages that can be used in the making of blockchain are:
C++ most known coding language.
Java used in website designing as it is easy to connect the link between blocks of information.
Python can perform many tasks with a single command and it makes the work of building blocks with relevant information and linking them together so much easier.
Ruby enables the use of a mix of languages to create a blockchain that cannot be easily hacked by its users.
Solidity :
Quote
Solidity is a contract-based language that is primarily used to enhance the use of EVM machines. One of the reasons why programmers prefer using this language to build the blockchain is the fact that it can catch hold of any iteration at the time of coding. It saves you a lot of time while creating the message to send across to another user. You can easily procure information and tutorials on the language that makes it accessible to the masses. It is one of the best expressions that you can use for smart contracts or blockchain for that matter.
Source: https://dzone.com/articles/what-are-the-top-5-blockchain-programming-language

Java, Python, & Ruby are generally easier for newcomers as they have less of a learning curve while C++ & Solidity usually take more time to learn.


*am not a programmer but just trying to share ideas based on my daily searches in the web, please correct me if you find something wrong.
Did you read my answer ? I don't have the absolute truth but these journalist-marketing-like affirmations are not accurate.

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January 04, 2019, 02:08:56 PM
 #5

I am trying to get into blockchain programming from having no programming experience, right now I am slowly learning C++, once I feel a little comfortable with it I am going to start learning blockchain development from courses regardless of the languages they use (which shouldn't be a problem because learning C++ is to give me the knowledge of programming in general and to apply C++ as well). But I see all of these different githubs and courses that use javascript and javascript derived languages (node.js, react.js, etc), those that use c++, those that use python, those that use GO, and I am at a loss. What should I learn exactly? Do I need to know all of these languages for not too complex blockchain applications?

My plan was to just learn c++ and then start studying the blockchain programming while learning the syntax of other languages as I need them, but how can you make a blockchain, cryptocurrency, explorer, wallet, etc utilizing all of the languages above? Do I need to?
Hi,

I do think that learning C/C++ as the first language is the best way to start. By being able to read C++ you can read the whole bitcoin-core code which is, I think, what you mean by "blockchain programing".

But you are confused with the term "blockchain" : a block chain is a database and in most cases just a set of transactions, you won't "programm a blockchain" as you won't programm a MariaDB. However you can use datas from a MariaDB database, or from a block chain for an application or interact with it : here you can differenciate two things.

1) You want to know how Bitcoin (the network, defined by a protocol) works and C++ is the good way to go.
2) You want to make some mobile or web applications which would interact with the Bitcoin network (or another, like Ethereum or Stellar) and in order to do so a scripting language in more often used (mostly Javascript).

Theses two paths are not incompatible but it is easier (required ^^) to go from 1) 2) than from to 2) to 1).

To conclude I would recommend you to learn and practice C++, trying to learn some parts of bitcoin-core (the reference implementation of the Bitcoin protocol) and then to choose what you want to do. Check this thread it can helps you to start with Bitcoin.

In no way am I confused, by blockchain programming I mean I want to program a blockchain. I’m not asking what a blockchain is as I’ve known for a long while, I want to be able to build custom blockchain solutions. Meaning I want to be able to program and run a blockchain, block explorer, wallet, and cryptocurrency. With this I’m sure I could work on established networks as well and I plan to learn solidity for smart contract programming.
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January 04, 2019, 02:22:33 PM
 #6

In no way am I confused, by blockchain programming I mean I want to program a blockchain. I’m not asking what a blockchain is as I’ve known for a long while, I want to be able to build custom blockchain solutions. Meaning I want to be able to program and run a blockchain, block explorer, wallet, and cryptocurrency. With this I’m sure I could work on established networks as well and I plan to learn solidity for smart contract programming.
Ok, so what do you mean by "program a blockchain" ? You don't want to build/use a network ? What is a custom blockchain solution ? An application using a network like Bitcoin ?

Meaning I want to be able to program and run a blockchain, block explorer, wallet, and cryptocurrency.
In order to do so you need a network, and it seems pretty close to what Bitcoin is.

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January 04, 2019, 05:33:07 PM
 #7

C++ is a poor choice for someone just starting out. Start with a simpler language such as Python, Java, or Javascript. Learning software development is the most important goal. Learning a specific language is secondary, since once you understand how software works you can pick up any language fairly quickly. Take my word for it. I have been doing software development for more than 20 years and I have used a dozen different languages.

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January 04, 2019, 06:12:04 PM
Merited by DdmrDdmr (2), bones261 (1), joniboini (1), darosior (1)
 #8

Honestly? If you want to attain the skills of working on your own cryptocurrency (or whatever else you want to build around a blockchain or distributed ledger) knowing your way around consensus algorithms, cryptographic standards and general application security is much more important than the question of which programming language too choose. Knowing c++ inside out won't prevent disaster if your security knowledge is lacking, especially in this field. And in the right hands even JavaScript can become an incredibly powerful tool.

In terms of getting started with programming I'd probably recommend JavaScript or Python, as both are relatively easy to get into, with JavaScript being ubiquitous to boot. Especially for anything web related (eg. block explorers) you won't get around using JavaScript (unless you fork an existing solution with little to no changes). While there are wallet clients that are written using JavaScript / Node.js, getting deep into the matter will likely nonetheless require solid c/c++ knowledge though (or Go or Rust if you feel especially fancy today).

But to repeat -- choosing the "right" programming language is secondary to having a firm grip on the theory. Also keep in mind that starting in one language won't keep you from specializing in another, so try not to overthink your starting point.


Here's some fun crypto related programming challenges to get you started, by the way. Regardless of which language you choose:

https://cryptopals.com/

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January 04, 2019, 08:43:20 PM
 #9

This looks like XY problem to me since OP's goal is vague

OP, what is your goal? If you simply want to make blockchain/cryptocurrency services on small-medium scale (such as wallet & block explorer), you can use existing open-source library or application which require some to little programming knowledge.
But if you want to make your own cryptocurrency/services which use blockchain, then you should consider darosior and HeRetiK advice.

Also, first learned programming language is controversial topic. Few says complex or static programming language is better while few other said simpler or dynamic programming language is better.

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January 04, 2019, 09:35:20 PM
 #10

Honestly? If you want to attain the skills of working on your own cryptocurrency (or whatever else you want to build around a blockchain or distributed ledger) knowing your way around consensus algorithms, cryptographic standards and general application security is much more important than the question of which programming language too choose. Knowing c++ inside out won't prevent disaster if your security knowledge is lacking, especially in this field. And in the right hands even JavaScript can become an incredibly powerful tool.

In terms of getting started with programming I'd probably recommend JavaScript or Python, as both are relatively easy to get into, with JavaScript being ubiquitous to boot. Especially for anything web related (eg. block explorers) you won't get around using JavaScript (unless you fork an existing solution with little to no changes). While there are wallet clients that are written using JavaScript / Node.js, getting deep into the matter will likely nonetheless require solid c/c++ knowledge though (or Go or Rust if you feel especially fancy today).

But to repeat -- choosing the "right" programming language is secondary to having a firm grip on the theory. Also keep in mind that starting in one language won't keep you from specializing in another, so try not to overthink your starting point.


Here's some fun crypto related programming challenges to get you started, by the way. Regardless of which language you choose:

https://cryptopals.com/

I believe your right, I will keep learning the basics and intermediates of c++ to learn how to program and it's fundamentals, from there I will focus on learning how to build blockchain applications and pick up which languages I need to learn and how to apply them along the way. And thanks for the crypto challenges, I will surely use those.
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January 05, 2019, 03:28:02 AM
 #11

you are basically asking a question that has been nearly as old as computer programming languages. you are asking which programming language is best! and it has nothing to do with bitcoin. and the fact that bitcoin core is written using C++ doesn't change that. you can start with any programming language and then learn blockchain technology. for example i don't know anything about C++ and i have been learning a lot.
know that every programming language has its own pros and cons. it is not like one of them is superior to others and if you learn that then you can do anything! i have seen programs that are written in C++ that perform poorly while the same thing in another language is performing a lot smoother and better. or vice versa. in the end it (most of the times) comes down to the developer itself.

since you have already started with C++ then i'd say continue on that path, it is a hard path though. learn the basics and when you finished the "beginner" level then move on to going though some intermediate code (like open source projects) and read them to increase your experience. then finally move on to advanced topics including blockchain, cryptography,...
the good news is that when you reach bitcoin you will have a very good source code to look at (bitcoin core) which can teach you a lot of things.

While there are wallet clients that are written using JavaScript / Node.js, getting deep into the matter will likely nonetheless require solid c/c++ knowledge though (or Go or Rust if you feel especially fancy today).
not necessarily.
i dare say in 90% of the times you just have to be familiar with A programming language. as someone who has looked at a lot of source code i have to say it is not hard reading them, you may not know 100% of what they are doing but you can see what is happening.

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January 05, 2019, 12:12:20 PM
 #12

While there are wallet clients that are written using JavaScript / Node.js, getting deep into the matter will likely nonetheless require solid c/c++ knowledge though (or Go or Rust if you feel especially fancy today).
not necessarily.
i dare say in 90% of the times you just have to be familiar with A programming language. as someone who has looked at a lot of source code i have to say it is not hard reading them, you may not know 100% of what they are doing but you can see what is happening.

I meant for writing the code (or maintaining a project) Smiley As far as reading the code is concerned I fully agree with you.

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January 05, 2019, 01:29:57 PM
Merited by DdmrDdmr (2), joniboini (1)
 #13


In no way am I confused, by blockchain programming I mean I want to program a blockchain. I’m not asking what a blockchain is as I’ve known for a long while, I want to be able to build custom blockchain solutions. Meaning I want to be able to program and run a blockchain, block explorer, wallet, and cryptocurrency. With this I’m sure I could work on established networks as well and I plan to learn solidity for smart contract programming.


I believe your right, I will keep learning the basics and intermediates of c++ to learn how to program and it's fundamentals, from there I will focus on learning how to build blockchain applications and pick up which languages I need to learn and how to apply them along the way. And thanks for the crypto challenges, I will surely use those.

What Heretik suggested is not learning blockchain applications, but learning blockchain fundamentals that aren't programming language.  I made a thread a while ago : Books about bitcoin/blockchain

If you're not proficient in C++, learn using it. Program applications, ANY applications. Blockchain programming shouldn't be something you use to learn a language, you already need to have mastered the basics and you should be able to program anything using your chosen language. (Hence why a lot of people pick javascript in their github blockchain projects because it's "easy"..)

Once you control the language, you then spend time familiarising yourself with the blockchain technology. You understand cryptography, you understand elliptic curves, you understand the satoshi white paper, basically you get an idea about everything needed for you to code the blockchain FROM SCRATCH.

Of course if you actually follow this road, it's not going to be easy. The non-programming aspect of this shit is fckin hard, even for us coders. But believe me, anyone that didn't do this couldn't ever dream of adding anything new or ever coming up with something innovative. People who self-title themselves as "blockchain programmers" while they barely know the surface of the technology and can only clone projects like some github parrots, rather than be able to understand it so well they can contribute with their own ideas, those are no blockchain programmers in my eyes. You can always be one of those if you prefer, it's easy to keep using trial and error and code a shitload of clones until you "understand" how to code a bitcoin clone Smiley

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January 05, 2019, 02:16:12 PM
 #14

<...>
Did you read my answer ? I don't have the absolute truth but these journalist-marketing-like affirmations are not accurate.

I just noticed your answer darosior, yes you are right and your response is great helpful. I was just trying to help OP by referring to my own researches as i also keep asking about where to start learning how to code for blockchain. And afaik, c/c++ are mandatory to start programming for newbies as it for professionals, are guides and tutorials helpful to master such a complicated language? what do i also need to start learning c/c++ ?? I still think there is a difference gap between free courses and paied ones. The question stil remain the same; where to start?

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January 05, 2019, 02:26:56 PM
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In no way am I confused, by blockchain programming I mean I want to program a blockchain. I’m not asking what a blockchain is as I’ve known for a long while, I want to be able to build custom blockchain solutions. Meaning I want to be able to program and run a blockchain, block explorer, wallet, and cryptocurrency. With this I’m sure I could work on established networks as well and I plan to learn solidity for smart contract programming.


I believe your right, I will keep learning the basics and intermediates of c++ to learn how to program and it's fundamentals, from there I will focus on learning how to build blockchain applications and pick up which languages I need to learn and how to apply them along the way. And thanks for the crypto challenges, I will surely use those.

What Heretik suggested is not learning blockchain applications, but learning blockchain fundamentals that aren't programming language.  I made a thread a while ago : Books about bitcoin/blockchain

If you're not proficient in C++, learn using it. Program applications, ANY applications. Blockchain programming shouldn't be something you use to learn a language, you already need to have mastered the basics and you should be able to program anything using your chosen language. (Hence why a lot of people pick javascript in their github blockchain projects because it's "easy"..)

Once you control the language, you then spend time familiarising yourself with the blockchain technology. You understand cryptography, you understand elliptic curves, you understand the satoshi white paper, basically you get an idea about everything needed for you to code the blockchain FROM SCRATCH.

Of course if you actually follow this road, it's not going to be easy. The non-programming aspect of this shit is fckin hard, even for us coders. But believe me, anyone that didn't do this couldn't ever dream of adding anything new or ever coming up with something innovative. People who self-title themselves as "blockchain programmers" while they barely know the surface of the technology and can only clone projects like some github parrots, rather than be able to understand it so well they can contribute with their own ideas, those are no blockchain programmers in my eyes. You can always be one of those if you prefer, it's easy to keep using trial and error and code a shitload of clones until you "understand" how to code a bitcoin clone Smiley

I’ve been with the blockchain industry for a while and I actually disagree. You don’t need to be able to program blockchain solutions to be able to contribute innovation to the industry. Also I’m not going to completely master c++ or any programming language if I don’t need to, that takes years, and if I don’t need to to be able to build blockchain solutions from scratch then I’m not going to. I have the many many resources for help at my disposal to be able to build these solutions such as articles, specific guides, and forums such as this one and stackoverflow. So if I get stuck I don’t need to just rely on my knowledge with every mistake I’ll learn from it.
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January 05, 2019, 02:30:27 PM
 #16

<...>
Did you read my answer ? I don't have the absolute truth but these journalist-marketing-like affirmations are not accurate.

I just noticed your answer darosior, yes you are right and your response is great helpful. I was just trying to help OP by referring to my own researches as i also keep asking about where to start learning how to code for blockchain. And afaik, c/c++ are mandatory to start programming for newbies as it for professionals, are guides and tutorials helpful to master such a complicated language? what do i also need to start learning c/c++ ?? I still think there is a difference gap between free courses and paied ones. The question stil remain the same; where to start?

You can go on Udemy for courses, there are so many great ones and it’s pretty much the only place I go for courses. Right now I’m taking a 40 hour course in c++ specifically for those with no experience in programming. They also have tons of blockchain programming courses. Also they are pretty much all on sale all the time for like $10.
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January 05, 2019, 02:32:53 PM
Merited by bones261 (2), DdmrDdmr (2), ETFbitcoin (1), joniboini (1)
 #17

<...>
Did you read my answer ? I don't have the absolute truth but these journalist-marketing-like affirmations are not accurate.

I just noticed your answer darosior, yes you are right and your response is great helpful. I was just trying to help OP by referring to my own researches as i also keep asking about where to start learning how to code for blockchain. And afaik, c/c++ are mandatory to start programming for newbies as it for professionals, are guides and tutorials helpful to master such a complicated language? what do i also need to start learning c/c++ ?? I still think there is a difference gap between free courses and paied ones. The question stil remain the same; where to start?
According to me, and it's only my opinion, C/C++ are the better language to start because there is less abstraction and I think a beginner needs to know what's going on when he does something, or he'll ending up doing things wrong. C is not so complicated and I would even say it is easier to understand than Python or Javascript : these two language put a high level of abstraction (Python is my favorite language I'm trying to be objective) and sometimes you'll have issues you won't even understand because of these abstractions, or worse issues that you could not see and someone with a better understanding can exploit.. In return you will be able to build great things with less effort and faster with these languages.

In order to link this to the subject of the thread, I think it is the same with Bitcoin/other cc networks : a concrete example is Solidity. Before Solidity people who wanted to do smart contracts had to use Script and in order to do so, understand how transactions work on Bitcoin. With Solidity people without a real understanding of what's going on under the hood on Ethereum are building smart contracts obviously insecure without even noticing it.

PS : I saw that your pseudo is in French so if you want guides you can checkout zeste de savoir or openclassrooms. But please open a new thread if you want to discuss this, in order to not be out of the scope of this thread.

EDIT : Of course, links I gave you provide free courses. Knowledge is free, please don't do the mistake of paying for courses selling dreams.

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January 06, 2019, 12:01:24 AM
Merited by bones261 (1)
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There are many languages of programming on which you can focus your efforts and the choice of digital money you want to use can serve as a basis for fit and usefulness. It is also essential that you reflect on the best programming dialects of 2015/2016, distributed here by IEEE and TIOBE.

To create a strong cryptographic programming environment, I would recommend focusing on the first learning of C ++ using a few learner books (if you are on a tight spending plan, you can really buy a considerable number of these books from an adjacent store). Goodwill or library used for 1 / twentieth of the cost), and then start trying different things with Node.JS, Python, Perl and other applicable dialects as they are normally perfect / recognized / enhanced under initial cryptographic conditions.

For explicit programming with crypto innovation, you can focus on C / C ++ with OpenCL / Cuda for GPU programming. As there is a massive capital and subsidy measure now asserted and devoted to crypto-innovation framework and engineering (and all is well, block establishment is vital), you can get a return on investment high by focusing on these regions and administrations and devices (C or C ++).
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January 06, 2019, 03:59:54 AM
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In order to link this to the subject of the thread, I think it is the same with Bitcoin/other cc networks : a concrete example is Solidity. Before Solidity people who wanted to do smart contracts had to use Script and in order to do so, understand how transactions work on Bitcoin. With Solidity people without a real understanding of what's going on under the hood on Ethereum are building smart contracts obviously insecure without even noticing it.

it is a bad example for multiple reasons, in my opinion.
for starters bitcoin's script is not meant for writing smart contracts since bitcoin is a currency and doesn't really need that kind of contract capability. in fact majority of the current OP codes are unnecessary.
additionally if we ignore the capability power, writing a script in bitcoin can be very easy only if you design a simple "wrapper" for it like a user friendly GUI that translates your purposes into scripts!

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January 06, 2019, 05:18:52 AM
 #20

OP, you can also take any free introductory course on Python, and then take Justin Moon's "Buidl Bootcamp" blockchain course, https://buidlbootcamp.com/

But it's not free though.


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✔️DICE           
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✔️LOTTO
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