Ranking_programming_languages_by_energy_efficiency_evaluation.ods - Computer programming is the core of computer science curriculum. Several programming languages have been used to teach the first course in computer programming, and such languages are referred to as first programming language (FPL). The pool of programming languages has been evolving with the development of new languages, and from this pool different languages have been used as FPL at ...

 
Energy efficiency across programming languages: how do energy, time, and memory relate? Authors: Rui Pereira , Marco Couto , Francisco Ribeiro , Rui Rua , Jácome Cunha , João Paulo Fernandes , João Saraiva Authors Info & Claims. Norco 5 325

Aug 8, 2023 · The 14 Best Programming Languages to Learn in 2023. 1. Python. Python is an open-sourced, general-purpose programming language. When it comes to Python applications, you have a lot of choices, as it’s widely used for web development, scientific computing, artificial intelligence, data analysis, and more. The Football Power Index (FPI) is a measure of team strength that is meant to be the best predictor of a team's performance going forward for the rest of the season. FPI represents how many points ...Broad adoption of Rust could reduce energy consumption of compute demands by a conservatively estimated 50%, Amazon wrote. Rust delivers the energy efficiency of the C programming language ...Swift. Haskell. C#. Go. Dart. JavaScript. TypeScript. “This paper presents a study of the runtime, memory usage, and energy consumption of twenty-seven well-known software languages. We monitor ...Ranking programming languages by energy efficiency R Pereira, M Couto, F Ribeiro, R Rua, J Cunha, JP Fernandes, J Saraiva Science of Computer Programming, 102609 , 2021 The OECD DAC Network on Development Evaluation (EvalNet) has defined six evaluation criteria – relevance, coherence, effectiveness, efficiency, impact and sustainability – and two principles for their use. These criteria provide a normative framework used to determine the merit or worth of an intervention (policy, strategy, programme ... The 14 Best Programming Languages to Learn in 2023. 1. Python. Python is an open-sourced, general-purpose programming language. When it comes to Python applications, you have a lot of choices, as it’s widely used for web development, scientific computing, artificial intelligence, data analysis, and more.Oct 23, 2017 · This paper presents a study of the runtime, memory usage and energy consumption of twenty seven well-known software languages. We monitor the performance of such languages using ten different programming problems, expressed in each of the languages. Our results show interesting findings, such as, slower/faster languages consuming less/more energy, and how memory usage influences energy ... Developed at Google in 2007, Go is a top-tier programming language. What makes Go really shine is its efficiency; it is capable of executing several processes concurrently. And as far as programming languages go, it has an extensive “vocabulary,” meaning it can display more information than other languages.Depending on which factors are important for your project you will get a different ranking of possible languages for your project. Conclusion. There is no singular good way to rank programming languages. However whenever you encounter a list or ranking of programming languages just be aware of what techniques they used to create the list.This report presents the findings, conclusions and recommendations of the evaluation of the Energy Efficiency Program (EEP). This evaluation was conducted as specified in Natural Resources Canada’s (NRCan) Joint Audit and Evaluation Plan 2018-2021, and in accordance with the Treasury Board Policy on Results (2016).May 5, 2021 · Using concepts from economics, efficiency can also be defined as the maximization of the benefit-to-cost ratio. Although communication can bring diverse benefits (social status, aesthetic pleasure, etc.), the main focus of most current studies on efficiency is on the successful transfer of information through a noisy communication channel, which is studied from an information theoretic ... RedMonk gives these rankings: 1 JavaScript 2 Java 3 Python 4 PHP 5 C# 6 C++ 7 CSS 8 Ruby 9 C 10 Objective-C 11 Swift 12 Shell 12 Scala 14 R 15 Go 15 Perl 17 TypeScript 18 PowerShell 19 Haskell 20 CoffeeScript 20 Lua 20 Matlab. Another ranking system, by Tiobe, ends up with a radically different top 20.Such tables illustrate that languages like C, Rust, C++, Pascal, and others are the most eco-friendly and consume the least energy. However, little is shown about how these rankings were produced. Guidebook for Energy Efficiency Evaluation, Measurement & Verification (EM&V Guidebook) to help state, local, and tribal air and energy officials—as well as key stakeholders such as utility EE implementers—take steps to learn about, establish, or refine their EM&V approaches. 1.1.1. Use by Air OfficialsAug 16, 2022 · Broad adoption of Rust could reduce energy consumption of compute demands by a conservatively estimated 50%, Amazon wrote. Rust delivers the energy efficiency of the C programming language ... May 1, 2021 · Ultimately, it is based on such comparisons that we propose a series of efficiency rankings, based on single and multiple criteria. Our results show interesting findings, such as how slower/faster languages can consume less/more energy, and how memory usage influences energy consumption. A programming language is a system of notation for writing computer programs. [1] Most programming languages are text-based formal languages, but they may also be graphical. They are a kind of computer language . The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning), which ...RedMonk gives these rankings: 1 JavaScript 2 Java 3 Python 4 PHP 5 C# 6 C++ 7 CSS 8 Ruby 9 C 10 Objective-C 11 Swift 12 Shell 12 Scala 14 R 15 Go 15 Perl 17 TypeScript 18 PowerShell 19 Haskell 20 CoffeeScript 20 Lua 20 Matlab. Another ranking system, by Tiobe, ends up with a radically different top 20. After two years in second place, C has finally edged out Java for the top spot. Staying in the top five, Python has swapped places with C++ to take the No. 3 position, and C# has fallen out of the ...An EnerGuide home evaluation can help you understand how your home uses energy now – and identify retrofits to help improve energy efficiency. An energy advisor will assess your home from basement to attic. This will give you an EnerGuide rating for your home and an energy efficiency report to help you make decisions about possible upgrades.Python is a relatively new programming language, first introduced in 1989, that has surged in popularity with the emergence of new fields of application. It is an interpreted language that supports automatic memory management and object-oriented programming. It heavily prioritizes developer experience.Ranking programming languages by energy efficiency R Pereira, M Couto, F Ribeiro, R Rua, J Cunha, JP Fernandes, J Saraiva Science of Computer Programming 205, 102609 , 2021Overviews of the energy efficiency programs reviewed for this chapter are provided in Table 6-2 and 6-3. Key findings drawn from these programs include: • Energy efficiency resources are being acquired on aver­ age at about one-half the cost of the typical new power sources, and about one-third of the cost of nat­ Aug 16, 2022 · Broad adoption of Rust could reduce energy consumption of compute demands by a conservatively estimated 50%, Amazon wrote. Rust delivers the energy efficiency of the C programming language ... Jun 3, 2018 · Motivation: Even though many studies examine the energy efficiency of hardware and embedded systems, those that investigate the energy consumption of software applications are still limited, and mostly focused on mobile applications. As modern applications become even more complex and heterogeneous a need arises for methods that can accurately assess their energy consumption. Goal: Measure the ... Feb 21, 2023 · Because 8-bit floating-point operations are about 30 times as energy efficient as 64-bit ones, makers of GPUs and other AI accelerator chips have been seeking ways to use such lower-precision ... About this report. Energy Efficiency 2021 is the IEA’s annual update on global developments in energy efficiency. This year’s edition explores recent trends in energy efficiency markets at the economy-wide and sectoral levels, including developments in policy and investment. The report also focuses on the role of energy efficiency in ...1.4.2 Programming Method(ologie)s: Advances in methods of programming also have influenced language design, of course. Refinements in thinking about flow of control led to better language constructs for selection (i.e., if statements) and loops that force the programmer to be disciplined in the use of jumps/branching (by hiding them). May 1, 2021 · Ultimately, it is based on such comparisons that we propose a series of efficiency rankings, based on single and multiple criteria. Our results show interesting findings, such as how slower/faster languages can consume less/more energy, and how memory usage influences energy consumption. Aug 29, 2023 · This year, Python doesn’t just remain No. 1 in our general “Spectrum” ranking—which is weighted to reflect the interests of the typical IEEE member—but it widens its lead. Python’s ... The OECD DAC Network on Development Evaluation (EvalNet) has defined six evaluation criteria – relevance, coherence, effectiveness, efficiency, impact and sustainability – and two principles for their use. These criteria provide a normative framework used to determine the merit or worth of an intervention (policy, strategy, programme ... Aug 16, 2022 · Broad adoption of Rust could reduce energy consumption of compute demands by a conservatively estimated 50%, Amazon wrote. Rust delivers the energy efficiency of the C programming language ... Request PDF | Ranking programming languages by energy efficiency | This paper compares a large set of programming languages regarding their efficiency, including from an energetic point-of-view.Energy efficiency across programming languages: how do energy, time, and memory relate? Authors: Rui Pereira , Marco Couto , Francisco Ribeiro , Rui Rua , Jácome Cunha , João Paulo Fernandes , João Saraiva Authors Info & ClaimsThis paper compares a large set of programming languages regarding their e ciency, including from an energetic point-of-view. Indeed, we seek to estab-lish and analyze di erent rankings for programming languages based on their energy e ciency. The goal of being able to rank programming languages basedMay 1, 2021 · Ultimately, it is based on such comparisons that we propose a series of efficiency rankings, based on single and multiple criteria. Our results show interesting findings, such as how slower/faster languages can consume less/more energy, and how memory usage influences energy consumption. Energy-Languages Public. The complete set of tools for energy consumption analysis of programming languages, using Computer Language Benchmark Game. C 634 MIT 104 9 2 Updated on Apr 20, 2022. hunter-emanafa Public. hunter-emanafa. RedMonk gives these rankings: 1 JavaScript 2 Java 3 Python 4 PHP 5 C# 6 C++ 7 CSS 8 Ruby 9 C 10 Objective-C 11 Swift 12 Shell 12 Scala 14 R 15 Go 15 Perl 17 TypeScript 18 PowerShell 19 Haskell 20 CoffeeScript 20 Lua 20 Matlab. Another ranking system, by Tiobe, ends up with a radically different top 20.In a programming language, an evaluation strategy is a set of rules for evaluating expressions. The term is often used to refer to the more specific notion of a parameter-passing strategy that defines the kind of value that is passed to the function for each parameter (the binding strategy) and whether to evaluate the parameters of a function call, and if so in what order (the evaluation order).Dec 14, 2021 · Notably, the energy consumption does vary by factors up to 80 between programming languages. On average, C and Rust programs are the most energy efficient. Java programs consume about 2 times more energy than C programs. JavaScript/TypeScript programs consume between 4 to 20 times more energy than C programs. described in Section 2.2) to analyze the energy efficiency of 27 languages and (almost) 270 programs. We have also extended it in order to monitor memory consumption, as well. This paper is organized as follows: Section 2 exposes the detailed steps of our methodology to measure and compare energy efficiency in software languages, followed by a pre-May 1, 2021 · Ultimately, it is based on such comparisons that we propose a series of efficiency rankings, based on single and multiple criteria. Our results show interesting findings, such as how slower/faster languages can consume less/more energy, and how memory usage influences energy consumption. Simon Fraser. Lecturer at Ulster University. 1w. Interesting (well to me anyhow) paper about the evaluation of the behaviour of the March and June versions of the ChatGPT 3.5 and 4. If we're going ...RedMonk gives these rankings: 1 JavaScript 2 Java 3 Python 4 PHP 5 C# 6 C++ 7 CSS 8 Ruby 9 C 10 Objective-C 11 Swift 12 Shell 12 Scala 14 R 15 Go 15 Perl 17 TypeScript 18 PowerShell 19 Haskell 20 CoffeeScript 20 Lua 20 Matlab. Another ranking system, by Tiobe, ends up with a radically different top 20.Such tables illustrate that languages like C, Rust, C++, Pascal, and others are the most eco-friendly and consume the least energy. However, little is shown about how these rankings were produced.Jul 22, 2020 · Here are the metrics we use to build an overall ranking of programming language popularity. The IEEE Spectrum Top Programming Languages app synthesizes 11 metrics from eight sources to arrive at ... May 10, 2020 · Python vs C++. Python is more memory efficient because of its automatic garbage collection as compared to C++ which does not support garbage collection. Python code is easy to learn, use and write as compare to C++ which is hard to understand and use because of its complex syntax. Python uses an interpreter to execute the code which makes it ... However, the question is hard to answer as many factors creep while measuring power consumption. This includes the quality of the compiler, libraries used, etc. However, the researchers were able to separate energy use by CPU or DRAM utilisation, determining that the CPU consumed the majority of power, about 88.94% on average, and the remaining ...The TIOBE Programming Community index is an indicator of the popularity of programming languages. The index is updated once a month. The ratings are based on the number of skilled engineers world-wide, courses and third party vendors. Popular search engines such as Google, Bing, Yahoo!, Wikipedia, Amazon, YouTube and Baidu are used to calculate ...Most popular programming languages to learn in 2023. The following list outlines a few of the most popular programming languages among software developers worldwide [ 2 ]. 1. JavaScript. According to a study by Statista, JavaScript is the most popular language to learn. JavaScript (JS) is a scripting language used to make websites and mobile ...Oct 23, 2017 · This paper presents a study of the runtime, memory usage and energy consumption of twenty seven well-known software languages. We monitor the performance of such languages using ten different programming problems, expressed in each of the languages. Our results show interesting findings, such as, slower/faster languages consuming less/more energy, and how memory usage influences energy ... The idea transmuted over to software programming languages—surely a faster language was a greener one, the logic went. That all changed in 2017 thanks to a group of researchers in Portugal who use what’s called the Computer Language Benchmarks Game (CLBG) as a way of ranking software languages in terms of energy efficiency.Most startups use Python-based backend frameworks such as Django (Python), Flask (Python), and NodeJS (JavaScript). These languages are also considered to be the best programming languages to learn for beginners. Below is a list of the most popular and best programming languages that will be in demand in 2023. 1.For you programming purists out there, here is an interesting white paper on the runtime energy efficiency of various programming languages. https://lnkd.in/dcMSsjKe People wonder why languages ...Dec 22, 2022 · This table is an extract from a 2017 scientific article, Energy Efficiency Across Programming Languages, and it makes sense: compiled languages like C or C++ are fast and energy efficient while ... Jul 26, 2016 · After two years in second place, C has finally edged out Java for the top spot. Staying in the top five, Python has swapped places with C++ to take the No. 3 position, and C# has fallen out of the ... In a programming language, an evaluation strategy is a set of rules for evaluating expressions. The term is often used to refer to the more specific notion of a parameter-passing strategy that defines the kind of value that is passed to the function for each parameter (the binding strategy) and whether to evaluate the parameters of a function call, and if so in what order (the evaluation order).A programming language is a system of notation for writing computer programs. [1] Most programming languages are text-based formal languages, but they may also be graphical. They are a kind of computer language . The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning), which ... For the last five years, Rust was voted as the most loved programming language by 86% of developers who took the survey. TypeScript took position two with 67.1% while Python came third after ...Towards a Green Ranking for Programming Languages. In Programming Languages: 21st Brazilian Symposium, SBLP 2017, Fortaleza, Brazil, September, 2017. Google Scholar Digital Library; Luis Cruz and Rui Abreu. 2017. Performance-based Guidelines for Energy Efficient Mobile Applications.Monitor and estimation tool enabled for 2nd Generation Intel® Core™ processors. IPPET is a prototype power monitoring utility that uses Intel-specific energy MSRs to break down power consumption per process and displays them in real-time on a web browser. PowerTOP is a Linux* tool to diagnose issues with power consumption and power management.In 2023, Java claims the No. 3 spot in terms of the most in-demand programming languages. This object-oriented language is free to use and can run on all platforms. It’s often used in application and web development, and it’s also used on the backend of big-name sites like Google, YouTube, and Amazon. If you’re just learning how to code ...the historical and future resource contributions of energy efficiency as compared to other energy resources. Many energy efficiency evaluations are oriented toward developing retrospective estimates of energy savings attributable to a program to demonstrate in regulatory proceedings that public or energy consumer funds were properly and effectively2. Python. Number of jobs: 1,049,041. Average annual salary: $120,700. Benefits: Python is widely regarded as a programming language that’s easy to learn, due to its simple syntax, a large library of standards and toolkits, and integration with other popular programming languages such as C and C++.Such tables illustrate that languages like C, Rust, C++, Pascal, and others are the most eco-friendly and consume the least energy. However, little is shown about how these rankings were produced.The 14 Best Programming Languages to Learn in 2023. 1. Python. Python is an open-sourced, general-purpose programming language. When it comes to Python applications, you have a lot of choices, as it’s widely used for web development, scientific computing, artificial intelligence, data analysis, and more.Python is a relatively new programming language, first introduced in 1989, that has surged in popularity with the emergence of new fields of application. It is an interpreted language that supports automatic memory management and object-oriented programming. It heavily prioritizes developer experience.An EnerGuide home evaluation can help you understand how your home uses energy now – and identify retrofits to help improve energy efficiency. An energy advisor will assess your home from basement to attic. This will give you an EnerGuide rating for your home and an energy efficiency report to help you make decisions about possible upgrades.This is the continuation of this 2017 paper: https://www.researchgate.net/publication/320436353_Energy_efficiency_across_programming_languages_how_do_energy_time_and_memory_relate There are new measurements and evaluations based on CLBG (as before), but now also based on Rosetta Code.1.4.2 Programming Method(ologie)s: Advances in methods of programming also have influenced language design, of course. Refinements in thinking about flow of control led to better language constructs for selection (i.e., if statements) and loops that force the programmer to be disciplined in the use of jumps/branching (by hiding them).Speed comparison of programming languages. This projects tries to compare the speed of different programming languages. In this project we don't really care about getting a precise calculation of pi. We only want to see how fast are the programming languages doing. It uses an implementation of the Leibniz formula for π to do the comparison. Such tables illustrate that languages like C, Rust, C++, Pascal, and others are the most eco-friendly and consume the least energy. However, little is shown about how these rankings were produced. Here are the metrics we use to build an overall ranking of programming language popularity. The IEEE Spectrum Top Programming Languages app synthesizes 11 metrics from eight sources to arrive at ...Energy Efficiency Policies and Programs. Energy efficiency policies and programs can help drive the implementation of projects that minimize or reduce energy use during the operation of a system or machine and/or production of a good or service. Resources related to different types of energy efficiency policies and programs are available below.described in Section 2.2) to analyze the energy efficiency of 27 languages and (almost) 270 programs. We have also extended it in order to monitor memory consumption, as well. This paper is organized as follows: Section 2 exposes the detailed steps of our methodology to measure and compare energy efficiency in software languages, followed by a pre-The OECD DAC Network on Development Evaluation (EvalNet) has defined six evaluation criteria – relevance, coherence, effectiveness, efficiency, impact and sustainability – and two principles for their use. These criteria provide a normative framework used to determine the merit or worth of an intervention (policy, strategy, programme ... Aug 29, 2023 · This year, Python doesn’t just remain No. 1 in our general “Spectrum” ranking—which is weighted to reflect the interests of the typical IEEE member—but it widens its lead. Python’s ... Algorithmic efficiency. In computer science, algorithmic efficiency is a property of an algorithm which relates to the amount of computational resources used by the algorithm. An algorithm must be analyzed to determine its resource usage, and the efficiency of an algorithm can be measured based on the usage of different resources.Python is a relatively new programming language, first introduced in 1989, that has surged in popularity with the emergence of new fields of application. It is an interpreted language that supports automatic memory management and object-oriented programming. It heavily prioritizes developer experience.Oct 25, 2021 · However, the question is hard to answer as many factors creep while measuring power consumption. This includes the quality of the compiler, libraries used, etc. However, the researchers were able to separate energy use by CPU or DRAM utilisation, determining that the CPU consumed the majority of power, about 88.94% on average, and the remaining ... Ranking programming languages by energy efficiency R Pereira, M Couto, F Ribeiro, R Rua, J Cunha, JP Fernandes, J Saraiva Science of Computer Programming 205, 102609 , 2021 1.4.2 Programming Method(ologie)s: Advances in methods of programming also have influenced language design, of course. Refinements in thinking about flow of control led to better language constructs for selection (i.e., if statements) and loops that force the programmer to be disciplined in the use of jumps/branching (by hiding them). described in Section 2.2) to analyze the energy efficiency of 27 languages and (almost) 270 programs. We have also extended it in order to monitor memory consumption, as well. This paper is organized as follows: Section 2 exposes the detailed steps of our methodology to measure and compare energy efficiency in software languages, followed by a pre- (In any given ranking, the highest-ranked language is assigned a score of 100, and the scores of lower-ranked languages are scaled to that.) The number-crunching language R rounds out the top five.1.4.2 Programming Method(ologie)s: Advances in methods of programming also have influenced language design, of course. Refinements in thinking about flow of control led to better language constructs for selection (i.e., if statements) and loops that force the programmer to be disciplined in the use of jumps/branching (by hiding them).

Jul 22, 2020 · Here are the metrics we use to build an overall ranking of programming language popularity. The IEEE Spectrum Top Programming Languages app synthesizes 11 metrics from eight sources to arrive at ... . Morkie puppies for sale in ohio under dollar500

ranking_programming_languages_by_energy_efficiency_evaluation.ods

May 1, 2021 · Request PDF | Ranking programming languages by energy efficiency | This paper compares a large set of programming languages regarding their efficiency, including from an energetic point-of-view. described in Section 2.2) to analyze the energy efficiency of 27 languages and (almost) 270 programs. We have also extended it in order to monitor memory consumption, as well. This paper is organized as follows: Section 2 exposes the detailed steps of our methodology to measure and compare energy efficiency in software languages, followed by a pre-Here are some notable findings: C and C++ consistently ranked among the most energy-efficient languages. Their low-level nature and direct access to system resources contribute to their efficiency ...described in Section 2.2) to analyze the energy efficiency of 27 languages and (almost) 270 programs. We have also extended it in order to monitor memory consumption, as well. This paper is organized as follows: Section 2 exposes the detailed steps of our methodology to measure and compare energy efficiency in software languages, followed by a pre- The Department of Computer Science and Engineering (CSE) offers undergraduate and graduate programs of study in Computer Science , Computer Science and Business, and Data Science, along with research opportunities in these fields. Computer science, the core of includes the study of computer algorithms, software systems, and the effective use of ... Aug 29, 2023 · This year, Python doesn’t just remain No. 1 in our general “Spectrum” ranking—which is weighted to reflect the interests of the typical IEEE member—but it widens its lead. Python’s ... #software: the choice of language is not without consequences A study place in order C, Pascal, Ada as the least energy consuming https://lnkd.in/eFUyvZvX by…Welcome to IEEE Spectrum ’s ninth annual ranking of the Top Programming Languages! This year we’ve revamped and streamlined our interactive ranking tool and made other changes under the hood, but the goal remains the same—to combine multiple metrics from different sources to estimate the relative popularity of different languages.This paper compares a large set of programming languages regarding their e ciency, including from an energetic point-of-view. Indeed, we seek to estab-lish and analyze di erent rankings for programming languages based on their energy e ciency. The goal of being able to rank programming languages basedOn IEEE Spectrum 's Fixing the Future podcast, our editors talk with the brightest minds in technology about concrete solutions to big challenges. 1. JavaScript. JavaScript is one of the world’s most popular programming languages on the web. Using JavaScript, you can build some of the most interactive websites. Also, it is one of the most demanding languages in programming as per recent reports by Stack Overflow.Feb 1. This is a blog post-version of the recent live talk of João Saraiva in the clean-IT openXchange series. In his live talk, Saraiva explained the methods and results of their famous study ...Energy Efficiency in Programming Languages Checking Energy Consumption in Programming Languages Using the Computer Language Benchmark Game as a case study. What is this? This repo contains the source code of 10 distinct benchmarks, implemented in 28 different languages (exactly as taken from the Computer Language Benchmark Game). Jul 22, 2020 · Our default ranking is weighted toward the interests of an IEEE member, and looking at the top entries, we see that Python has held onto its comfortable lead, with Java and C once again coming in ... On IEEE Spectrum 's Fixing the Future podcast, our editors talk with the brightest minds in technology about concrete solutions to big challenges.Here are some notable findings: C and C++ consistently ranked among the most energy-efficient languages. Their low-level nature and direct access to system resources contribute to their efficiency ...In a programming language, an evaluation strategy is a set of rules for evaluating expressions. The term is often used to refer to the more specific notion of a parameter-passing strategy that defines the kind of value that is passed to the function for each parameter (the binding strategy) and whether to evaluate the parameters of a function call, and if so in what order (the evaluation order). the historical and future resource contributions of energy efficiency as compared to other energy resources. Many energy efficiency evaluations are oriented toward developing retrospective estimates of energy savings attributable to a program to demonstrate in regulatory proceedings that public or energy consumer funds were properly and effectivelyv. t. e. Computer programming is the process of performing particular computations (or more generally, accomplishing specific computing results), usually by designing and building executable computer programs. Programming involves tasks such as analysis, generating algorithms, profiling algorithms' accuracy and resource consumption, and the ... .

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