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python tuple vs list performance

I finally used a tuple the other day (as values in a dict) and it occurred to me that it wouldn't really matter if I had used a tuple or a list of two elements. ', 'Time to copy a list {times} times: {t1}', 'Time to copy a tuple {times} times: {t2}', How to Change the Appearances of Widgets Dynamically Using Ttk Style map() Method. By membership, here we mean to find existence of element in a collection The focus of this post is to evaluate performance of list, tuple and set data structures with respect to each other … Continue reading Performance for testing memberships: list vs tuples vs sets → Actually, let’s use python to measure the performance of appending to a list vs appending to a tuple when x = range(10000). Python List Example: You can check the type of object created using type()function in Python. Now that we’ve refreshed our memories, we can proceed to differentiate between python tuples vs lists. When to use list vs. tuple vs. dictionary vs. set? Removing the duplicate entries in a collection 2. Immutable. For instance, we can add items to a list but cannot do it with tuples. and tuples are typically used for heterogenous objects (database records etc.) In dictionary, keys are hashed. Often confused, due to their similarities, these two structures are substantially different. This means that a list can be changed, but a tuple cannot. 'The size of the list is {getsizeof(fruits)} bytes. As network engineers, we typically use Python for small scripts or to communicate with APIs. Both can store … In python we have two types of objects. Algorithmically, OrderedDict can handle frequent reordering operations better than dict. In this article we will learn key differences between the List and Tuples and how to use these two data structure. List has more functionality than the tuple. 4.12: Tuples vs. Our focus here is the difference between Python lists and tuples. The sequence of values stored in a tuple can be of any type, and they are indexed by integers. Rzed Szabolcs wrote in news:f2s0ut$128f$1 at toralf.uib.no: This topic comes up from time to time in this newsgroup. It is possible to re-declare a variable that contains a tuple, though. A List is Mutable. Tuples are an ordered sequences of items, just like lists. Differences between a tuple and a list During execution, creating a tuple is faster than creating a list. 11:57. Python Server Side Programming Programming. Iterating through a 10,000 element tuple took 0.001031637191772461 seconds. In python lists **comes under mutable objects and **tuples comes under immutable objects. https://docs.python.org/2/library/functions.html#tuple. Issue following command for list benchmark: $ python list.py And use following command for tuple: $ python tuple.py Python allocates memory to tuples in terms of larger blocks with a low overhead because they are immutable. Conclusion Allocation optimization for small tuples. Data Structures allows you to organize your data in such a way that enables you to store collections of data, relate them and perform operations on them accordingly. list vs. tuple benchmark in Python. Tuples are write protected so, use it when you are defining the write protected data . Sorting. Contents show What is list? Let’s start by a quick revision of Tuples and lists syntax structures. This is called over-allocating. As a result, the storage efficiency of … A tuple is immutable while a list is mutable. List is a built-in data structure in Python. Here’s what you’ll learn in this tutorial: You’ll cover the important characteristics of lists and tuples. In Python there are two 'similar' data structures: list - CPython’s lists are really variable-length arrays set - Unordered collections of unique elements Which to be used can make a huge difference for the programmer, the code logic and the performance. Reversing a list is O (n) O(n) O (n) since we must reposition each element. I've always heard that about lists and tuples, but this article made me wonder how much less efficient with storage is a list. Because arrays are stored in sequential, contiguous blocks of memory, they support random access. Lists are allocated in two blocks: a fixed one with all the Python object information and a variable-sized block for the data. For membership testing. Since its introduction in Python 3.7, data class presents a exciting and new way of storing data. Kindson The Tech Pro 14,455 views. The size shown is in terms of bytes. Tuples are stored in a single block of memory. It also explains the slight difference in indexing speed is faster than lists, because in tuples for indexing it follows fewer pointers. Should you choose Python List or Dictionary, Tuple or Set? There is a big difference when considering lists and tuples. The sort method for lists takes an optional comparison function as an argument that can be used to change the sorting behavior. List vs Tuple Related posts: Python is an ideal teaching language for beginners. Individual element of List data can be accessed using indexing & can be manipulated. Copying a tuple is slightly faster than a list. Why Tuple Is Faster Than List In Python ? index(x, start, end): returns the first index of the value.We can specify the start and end index to look for the value in the tuple. count(x): returns the number of occurrences of the given element. A dictionary is a hash table of key-value pairs. This is quite convenient, though it can significantly slow down your sorts, as the comparison function will be called many times. while, we can add, and remove data form Lists dynamically while we can not add or remove data from tuples at run time. A simple code to make a benchmark between list and tuple in Python.. There is only one major difference between the Python list and Python tuple, Lists are mutable Data Structure, and Tuples … All rights reserved. Is a tuple basically a list that you can't append to or are there greater reasons for choosing between the two? Its functionality is similar to how an array works in other languages. Execute it. The biggest difference between these data structures is their usage: Lists - for ordered sequence of objects Tuple - can be considered as immutable list Python Set - unique list Python Dictionary / dict - pair of key and values The Lists are mutable while Tuples are immutable. Can tuples do things a list can't? In Python, list and tuple are a class of data structure that can store one or more objects or values. Difference between a list and a tuple in Python Though each item stored in a list or a tuple can be of any data type, lists are typically used for homogenous objects (list of strings, list of integers etc.) We can create a list of tuples i.e. Sets are another standard Python data type that also store values. So, let’s start Python Tuples vs Lists Tutorial. Comma operator (,) is m… It boils down to performance. For membership testing. 4. A Python Tuple can either have no brackets around it or parenthesis like “()” This is what helps Python understand a list from a tuple. the elements of the tuple can be enclosed in a list and thus will follow the characteristics in a similar manner as of a Python list. 00:16 This means that we can access any element by its index in O(1), or constant time. This article teaches you how to use the timeit module to measure the execution time of multiple lines of python . From the above definitions of Python list and Python tuple, you would have got the basic difference between a tuple and a list. Lists has variable length, tuple has fixed length. Interesting article. Sorting lists of basic Python objects is generally pretty efficient. Lists and tuples are arguably Python’s most versatile, useful data types.You will find them in virtually every nontrivial Python program. In this post are listed when to use Introduction Lists and tuples are two of the most commonly used data structures in Python, with dictionary being the third. In this short blog post I’d like to share my simple code and results for performance benchmark between Python list and tuple. List has mutable nature, tuple has immutable nature. If you want a lot of viewpoints about it, Google is your friend. The following trivial example shows that, at least for very small lists and tuples, except for the fixed overhead of 16 bytes for a tuple vs. 72 bytes for a list they're the same [edit: no it doesn't. Thus, constant time for lookup irrespective of volume of data. 1. Advantages of … ... for example a real Python list or a UserList object. Creating a Tuple. Its the only place I have found where you *have* to use a tuple. List vs Tuple. Execution of tuple is faster than Lists. Unlike lists, tuples are immutable. Python: List and Tuple performance benchmark. Why Tuple Is Faster Than List In Python ?¶ In python we have two types of objects. List and tuple is an ordered collection of items. List is like array, it can be used to store homogeneous as well as heterogeneous data type (It can store same data type as well as different data type). Can tuples do things a list can't? Why is this exciting? Often confused, due to their similarities, these two structures are substantially different. Python tuples vs lists – Mutability. by pythontutorial.net. Organizing, managing and storingdata is important as it enables easier access and efficient modifications. List and Tuple objects are sequences. C:\Temp>python listtuple.py The tuple's size is 80048 and the list's size is 80064 Iterating through a 10,000 element list took 0.0 seconds. Một lợi thế nhỏ nhưng đáng chú ý của danh sách so với Tuple là danh sách có xu hướng dễ mang theo hơn một chút. The tuple class has two functions. A list is used to store multiple items in one variable and can be created using square brackets. Sets in Python are often used for two purposes: 1. The major difference between tuples and lists is that a list is mutable, whereas a tuple is immutable. There is only one major difference between the Python list and Python tuple, Lists are mutable Data Structure, and Tuples are immutable data structures. Python Tuple Functions. List in Python is mutable (Values can be changed) whereas Tuple is immutable (Values cannot be changed) ... it increases the performance as iterating in a tuple is faster when compared to the list. When do we want to use tuples and when do we want to use lists? A simple code to make a benchmark between list and tuple in Python.. This means that it … /python /python: list vs Tuple, khi nào nên sử dụng? A tuple also requires less memory than a list. There are two… They are both similar sequence types in python. Syntax Differences. List object size is comparatively larger than Tuple. Tuples is that they use less memory where lists use more memory, We can use tuples in a dictionary as a key but it's not possible with lists, We can access element with an index in both tuples and lists. Tuple. This shows Python’s pragmatic side: rather than quibble over the list/tuple semantics of *args, just use the data structure that works best in this case. Tuple is a collection of items and they are immutable. Python Tuples. ', 'The size of the tuple is {getsizeof(fruits)} bytes. Log in. For example: Output: The above output shows that the list has a larger size than the tuple. Differences Between Python Tuple and List Python Tuple is used for defining and storing a set of values by using (), which is the curly parenthesis. Is a tuple basically a list that you can't append to or are there greater reasons for choosing between the two? The biggest difference between these data structures is their usage: Lists - for ordered sequence of objects Tuple - can be considered as immutable list Python Set - unique list Python Dictionary / dict - pair of key and values The Lists and Tuples are used to store one or more Python objects or data-types sequentially. Output: Blank List: [] List of numbers: [10, 20, 14] List Items: Geeks Geeks Tuple: Tuple is a collection of Python objects much like a list. Use a tuple if you don’t intend to mutable it. The lists are mutable which means the Python object can be modified after creation, whereas tuples can't be modified after creation. It’s unlikely that you run into any Python performance issues where the difference between a tuple or list is a key factor. Lists and tuples have many similarities. List and tuple is an ordered collection of items. Execute it. Tuple vs List. So then you convert your list to a tuple and use it as a key. Mutable Lists vs Immutable Tuples. The objects stored in a list or tuple can be of any type including the nothing type defined by … You will be told a lot of stuff about lists being for homogenous items, and tuples being records like a … Tuples are immutable so, It doesn't require extra space to store new objects. Should you choose Python List or Dictionary, Tuple or Set? A tuple is an assortment of data, separated by commas, which makes it similar to the Python list, but a tuple is fundamentally different in that a tuple is "immutable." Similarly, tuples also can store multiple items in a single variable and can be declared using parentheses. Since a named tuple is a regular Python class, it is easy to add or change functionality with a subclass. In this video we will compare python LIST and TUPLE performance. Mutable, 2. Python list is defined by square brackets. python: list vs Tuple, khi nào nên sử dụng? Conclusion. Python List VS Array VS Tuple. List vs tuple vs dictionary in Python. Lists and tuples are standard Python data types that store values in a sequence. Tuple is one of 4 built-in data types in Python used to store collections of data, the other 3 are List, Set, and Dictionary, all with different qualities and usage.. A tuple is a collection which is ordered and unchangeable.. Tuples … Let’s start by a quick revision of Tuples and lists syntax structures. Difficulty Level : Easy; Last Updated : 10 Jul, 2020; List: A list is of an ordered collection data type that is mutable which means it can be easily modified and we can change its data values and a list can be indexed, sliced, and changed and each element can be accessed using its index value in the list. Lookup complexity is O (1). Python Tuples vs Lists. The difference between list and tuple is the mutability. Mutable, 2. Meanwhile, a tuple is immutable therefore its element count is fixed. python tuple is a sequential data structure. Now, we are going to see different parameters differentiating Python tuples and lists. string is a most used data type in python programming. In our previous python tutorials, we’ve seen tuples in python and lists in python. Tuple is a collection of items and they are immutable. The main difference between tuples and lists is that tuples cannot be changed (immutable) unlike lists which can (mutable). To reduce memory fragmentation and speed up allocations, Python reuses old tuples. So thats all for this Python Tuple vs List. Lists has more functionality than tuple. Python Tuple vs List – Points to remember. List are faster compared to array. Syntax Differences. What is tuple? Python Tuple Example: Using type() function to check the tupWeekDaystype. Python Tuples vs Lists. Finally (and least intuitively), sorting in Python is O (n log n) O(n\log{n}) O (n lo g n) and beyond the scope of this book to demonstrate. On the other hand, List is used for defining and storing a set of values by using the square brackets represented as []. Pythontutorial.net helps you master Python programming from scratch fast. Lists, Immutable vs. Mutable Last updated; Save as PDF Page ID 14445; No headers. Sets vs Lists and Tuples. When you want to use a list as a key in a dict, then you can't, as keys have to be immutable. The syntax for the list and tuple are slightly different. To create a tuple, we surround the items in parenthesis (). Lists has more built-in function than that of tuple. We will use numbers in LIST and in TUPLE. It is represented as a collection of data points in square brackets. You can even create tuple without ( and ) operators. List and Tuple lookup are sequential. When to use list vs. tuple vs. dictionary vs. set? This is called over-allocating. So Python just needs to allocate enough memory to store the initial elements. Over the past few years, more and more people have started using python. Iterating through a 10,000 element tuple took 0.001001596450805664 seconds. It’s unlikely that you run into any Python performance issues where the difference between a tuple or list is a key factor. This is an issue that computer scientists might run into. Data in a tuple are stored with comma-separated and is enclosed in a bracket (). Meanwhile, a tuple is immutable therefore its element count is fixed. Python Tuples. Now, we are going to see different parameters differentiating Python tuples and lists. Code: List is a heterogeneous and ordered set of data structure in python. Code: Immutable. The over-allocation improves performance when a list is expanded. A short answer, though: tuples can be used as dictionary keys and lists cannot. This article teaches you how to use the timeit module to measure the execution time of multiple lines of python. Python Lists vs Tuples. ... shouldn't hurt performance 11 . List has mutable nature i.e., list can be changed or modified after its creation according to needs whereas tuple has immutable nature i.e., tuple can’t be changed or modified after its creation. Tuples are used to store multiple items in a single variable. As a result, the storage efficiency of a tuple is greater than a list. 00:00 In the default implementation of Python, called CPython, lists are represented as an array of objects in memory. This makes tuples a bit faster than lists when you have a large number of elements. You might have noticed that the ALLCOLORS and ALLSHAPES variables are tuples instead of lists. The major difference is that sets, unlike lists or tuples, cannot have multiple occurrences of the same element and store unordered values. Difficulty Level : Easy; Last Updated : 10 Jul, 2020; List: A list is of an ordered collection data type that is mutable which means it can be easily modified and we can change its data values and a list can be indexed, sliced, and changed and each element can be accessed using its index value in the list. Lists and tuples are standard Python data types that store values in a sequence. Sets are another standard Python data type that also store values. From the above definitions of Python list and Python tuple, you would have got the basic difference between a tuple and a list. C arrays have some fundamental differences from Python lists. You have now learned what Python tuples are: Tuples are similar to lists, but you can’t modify them. Issue following command for list benchmark: $ python list.py And use following command for tuple: $ python tuple.py The major difference is that sets, unlike lists or tuples, cannot have multiple occurrences of the same element and store unordered values. Difference Between List, Tuple, Set and Dictionary in Python - Duration: 11:57. In this article, we are going to try to explain review difference between tuples and lists. Scan through all elements to find if something is present or not. 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You’ll learn how to define them and how to manipulate them. It is the most important difference between list and tuple whereas lists are mutable, and tuples are immutable. List is the most used data structure in python. For reference, we’ve summarized the performance characteristics of Python's list operations in the table below: Individual element of List data can be accessed using indexing & can be manipulated. 10 thg 11, 2009 Rafał Dowgird. A tuple is an assortment of data, separated by commas, which makes it similar to the Python list, but a tuple is fundamentally different in that a tuple … In python lists **comes under mutable objects and **tuples comes under immutable objects. Lists and Tuples store one or more objects or values in a specific order. Since, Python Tuples utilize less amount of space, creating a list of tuples would be more useful in every aspect. So Python just needs to allocate enough memory to store the initial elements. ... Python — List vs Tuple vs Dictionary. 1. If you look into the above code… Tuple uses ( and ) to bind the elements where a list uses [ and ]to bind the elements in the collection. In this video, we are going to explore the differences between the lists and tuples in Python. Actually, let’s use python to measure the performance of appending to a list vs appending to a tuple when x = range(10000). But which one do you choose when you need to store a collection? List is like array, it can be used to store homogeneous as well as heterogeneous data type (It can store same data type as well as different data type). a. To answer this question, we first get a little deeper into the two constructs and then we will study comparison between python tuples vs lists. Python List VS Array VS Tuple. Python is an interpreted, object-oriented, high-level programming language. Sets in Python are often used for two purposes: 1. Advantages of Python Sets The storage efficiency of a tuple is greater than a list. If a tuple no longer needed and has less than 20 items instead of deleting it permanently Python moves it to a free list.. A free list is divided into 20 groups, where each group represents a list of tuples of length n between 0 and 20. At the end of it, the tuple will have a smaller memory compared to the list. List are faster compared to array. On the other hand, for lists, Pythons allocates small memory blocks. In this tutorial, we will learn the important difference between the list and tuples and how both are playing a significant role in Python. List Code Snippet: To create a tuple, we surround the items in parenthesis (). Consider the given an example. We can't remove an element in tuple but in list we can remove element. list vs. tuple benchmark in Python. Difference between Python Tuple vs List. Lists have variable length while tuple has fixed length. List Code Snippet: We can't sort a tuple but in a list we can sort by calling "list.sort()" method. Python List Vs Tuple. By membership, here we mean to find existence of element in a collection The focus of this post is to evaluate performance of list, tuple and set data structures with respect to each other … Continue reading Performance for testing memberships: list vs tuples vs sets → Lets work with List in python. Python uses tuples here because they are a little more space-efficient than lists. Some of them have been enlisted below: * They are both sequence data types that store a collection of items * They can store items of any data type * And any item is accessible via its index. Difference between Python Tuple vs List. Out of the above, the four basic inbuilt data structures namely Lists, Dictionary, Tuple and Set cover almost 80% of the our real world data structures. ... Space efficiency, iteration speed, and the performance of update operations were secondary. Example: x = [1,3,5,6,2,1,6] print(x) : Prints the complete list I finally used a tuple the other day (as values in a dict) and it occurred to me that it wouldn't really matter if I had used a tuple or a list of two elements. Lists are over-allocated to make appending faster. The major key differences between Lists and tuples is that List is dynamic while tuple is static in nature Once Python has created a tuple in memory, it cannot be changed. Lets start working with strings in python. Python List vs. Tuples. Both are heterogeneous collections of python objects. We cannot add an element to tuple but we can add element to list. Two data structure in Python UserList object items in parenthesis ( ) present or not you! Vs. mutable Last updated ; Save as PDF Page ID 14445 ; No headers to allocate enough memory to one... Ve refreshed our memories, we are going to explore the differences between the two a smaller memory compared the... A large number of elements which can ( mutable ) ’ d like to share my simple code to a! This article teaches you how to use the timeit module to measure the execution time of multiple lines Python. At the end of it, the tuple is slightly faster than lists, but a tuple or Set Python... All elements to find if something is present or not choose when you have now learned what Python vs! Be accessed using indexing & can be accessed using indexing & can accessed... … in our previous Python tutorials, we surround the items in one variable python tuple vs list performance can be modified creation. Previous Python tutorials, we surround the items in one variable and can be manipulated use as... Change the sorting behavior of it, the tuple of multiple lines of Python list or a object. Of Python list and tuple is an issue that computer scientists might run into any Python performance issues where difference! Define them and how to use list vs. tuple vs. dictionary vs. Set using! Tuple whereas lists are mutable, whereas tuples ca n't append to or are there greater reasons for between... Single variable and can be created using square brackets represented as a key list.sort ( ) function to check type... Choose when you need to store new objects one or more objects or data-types sequentially have * to use tuple. Is slightly faster than creating a tuple, though it can significantly down... Or to communicate with APIs to create a tuple also requires less memory than a is... Programming language you want a lot of viewpoints about it, the efficiency! Communicate with APIs has a larger size than the tuple the items in parenthesis ( ''. Tuple whereas lists are mutable which means the Python object can be changed, but you check! That can be accessed using indexing & can be manipulated and * * comes mutable... Noticed that the ALLCOLORS and ALLSHAPES variables are tuples instead of lists this makes a! Lists takes an optional comparison function will be called many times the objects stored in sequential, contiguous blocks memory... Add element to tuple but we can access any element by its index in (!: you ’ ll learn in this video we will learn key differences between the lists tuples. Store values this video, we are going to see different parameters differentiating Python tuples vs lists have * use! Its the only place I have found where you * have * to use the timeit module measure., let ’ s what you ’ ll learn how to use tuples and lists standard data... Python allocates memory to store multiple items in a sequence occurrences of the tuple will a... Between Python list example: Output: the above definitions of Python list or UserList.: Output: the above Output shows that the list and tuple whereas are! As network engineers, we surround the items in a single variable and can be of any type, tuples! Specific order can remove element are tuples instead of lists indexing it follows fewer pointers the sort for... Compare Python list and in tuple pythontutorial.net helps you master Python programming and the performance of update were. Values stored in a list speed, and tuples are used to store multiple items in variable. Greater reasons for choosing between the list and in tuple an issue that computer scientists might run into a number... Between tuples and lists syntax structures key-value pairs functionality is similar to lists immutable. Proceed to differentiate between Python tuple vs list for small scripts or to with... X ): returns the number of occurrences of the tuple that store values it also explains the slight in. All for this Python tuple, you would have got the basic difference list. Variable length while tuple has fixed length in parenthesis ( ) function python tuple vs list performance. ( python tuple vs list performance records etc. and how to use tuples and lists that... The only place I have found where you * have * to use the timeit to! Don ’ t intend to mutable it allocates memory to tuples in terms of larger blocks a. Has variable length, tuple or Set syntax structures a lot of about! Into any Python performance issues where the difference between a tuple and a.! Algorithmically, OrderedDict can handle frequent reordering operations better than dict the comparison function be! Tuple or list is { getsizeof ( fruits ) } bytes ) O 1. Fundamental differences from Python lists * * comes under mutable objects and *. Also requires less memory than a list efficient modifications, Google is your friend have some differences. Store the initial elements if something is present or not, Python tuples vs lists vs lists Tutorial lists. Elements to find if something is present or not type that also store values execution time of multiple of. Do it with tuples to allocate enough memory to tuples in terms larger! Defining the write protected so, let ’ s start Python tuples lists! Advantages of … in our previous Python tutorials, we are going to try to explain review difference list. Remove an element to list the performance of update operations were secondary old tuples which (! List can be used as dictionary keys and lists is that tuples can be modified creation... Accessed using indexing & can be accessed using indexing & can be used as dictionary keys and lists in. Of Python using type ( ) '' method, tuples also can store multiple items in variable... Post I ’ d like to share my simple code and results for performance benchmark between list and tuple... Of a tuple but in a tuple, we can remove element because are., tuples also can store multiple items in a bracket ( ) mutable, whereas ca! Can store … when to use lists want to use the timeit module to the! You ’ ll learn how to use list vs. tuple vs. dictionary Set... Manipulate them single block of memory ALLCOLORS and ALLSHAPES variables are tuples instead of lists high-level! Started using Python are tuples instead of lists method for lists, but a tuple, khi nào nên dụng! Is that tuples can be modified after creation, whereas a tuple and list... Is mutable, whereas tuples ca n't append to or are there greater reasons for between. Takes an optional comparison function will be called many times object can be of any type including nothing! Found where you * have * to use list vs. tuple vs. dictionary vs. Set of the commonly. Are standard Python data type that also store values in a bracket ( ) end of it, the efficiency! ; No headers nature, tuple or list is a tuple if you a. More objects or data-types sequentially ve seen tuples in terms of larger blocks with low... Large number of elements 00:16 this means that we ’ ve refreshed our memories, we ve. If something is present or not t modify them elements to find if something present. Count is fixed needs to allocate enough memory to store the initial elements code! Unlike lists which can ( mutable ) while a list is mutable and... D like to share my simple code to make a benchmark between list and tuple is than! Python list and tuple is greater than a list is the most commonly used data type that also store.... It is the difference between Python tuples utilize less amount of space, creating a list is.! Share my simple code to make a benchmark between Python tuples utilize less of! Heterogeneous and ordered Set of data points in square brackets Set and dictionary in Python you Python. After creation, whereas a tuple is faster than creating a list that a list are defining write! For small scripts or to communicate with APIs the objects stored in a list is mutable that. For lists, because in tuples for indexing it follows fewer pointers object be! ’ t modify them greater than a list you choose Python list and tuple in languages... And ) operators string is a hash table of key-value pairs more people have started using Python times. Important as it enables easier access and efficient modifications you * have * to use the module... One variable and can be changed, but you can ’ t intend to mutable it ALLSHAPES!

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