#Introduction to Programming

[multi-fandom-magic]

So, my main Introduction to Programming tutor left. They left for better career opportunities. I'm having trouble with one part of a programming assignment, and I tried going to others for help but no matter what, everything I do results in an error. We bonded over FFVII as well. I really miss them a lot😢

[codingclassesinchandigarh]

Introduction to Programming

A Beginner-Friendly Roadmap to the Digital World

Programming is the process of giving computers a precise set of instructions so they can perform tasks, solve problems, or entertain us with games and apps. From the navigation system in your car to the streaming service on your phone, nearly every modern convenience relies on code written by developers. This article offers a concise yet comprehensive introduction to programming, covering its purpose, core concepts, common languages, learning strategies, and career paths.

Why Learn Programming?

Problem-Solving Power – Coding teaches you to break big challenges into manageable steps.

Career Flexibility – Developers work in fields as diverse as healthcare, finance, space exploration, and entertainment.

Automation & Efficiency – Scripts can handle repetitive tasks, freeing humans for creative work.

Innovation & Impact – Apps, websites, and AI systems all start as lines of code.

Fundamental Concepts

ConceptWhat It MeansQuick ExampleVariablesNamed storage for dataage = 30Data TypesCategories such as integers, strings, Booleans3.14, "Hello"Control FlowDecision-making & loopsif, for, whileFunctionsReusable code blocks that perform tasksdef greet(name):Data StructuresOrganized collections like lists, dictionaries, stacksshopping_list = ["milk", "bread"]

Mastering these basics lets you read and write code across many languages.

The Four Main Programming Paradigms

Procedural – Step-by-step instructions (e.g., C).

Object-Oriented – Code organized into objects (e.g., Java, Python).

Functional – Emphasizes pure functions and immutability (e.g., Haskell, Scala).

Scripting – Automates tasks and glues systems together (e.g., JavaScript, Bash).

Choosing a paradigm depends on the problem you’re trying to solve and your personal preference.

Popular Languages and Their Use Cases

Python – Data science, automation, web back-ends.

JavaScript – Interactive websites, serverless functions.

Java & Kotlin – Android apps, large-scale enterprise software.

C & C++ – Operating systems, game engines, embedded devices.

Swift – iOS and macOS development.

Tools of the Trade

Integrated Development Environments (IDEs) – Visual Studio Code, IntelliJ, or Android Studio speed up coding classes with autocomplete and debugging.

Version Control – Git tracks changes and supports collaboration.

Package Managers – npm, pip, or Maven handle external libraries efficiently.

Cloud Platforms – AWS, Azure, and Google Cloud deploy applications globally.

Learning Strategies for New Programmers

Start Small, Build Often – Create simple programs (a calculator, a to-do list) before attempting large projects.

Read the Docs – Official documentation clarifies syntax and best practices.

Practice Daily – Consistency beats cramming; even 30 minutes a day adds up.

Join a Community – Online forums, local meet-ups, or study groups provide support and feedback. The synergy of tech skills with clear communication—inspired by courses like the Best Content writing classes in Cahndigarh—can also sharpen how you document and present your code.

Contribute to Open Source – Real-world code reviews are invaluable learning experiences.

Bridging Programming with Other Disciplines

Programming enhances many professions:

Design – Front-end developers turn mock-ups into interactive experiences.

Data Analysis – Analysts use Python or R to transform raw data into insights.

Marketing – Automation scripts handle email campaigns and SEO audits.

Content Creation – Developers build custom plugins and analytics tools for writers, podcasters, and video editors.

Career Pathways

RoleTypical SkillsExample Projects Web DeveloperHTML/CSS, JavaScript, React E-commerce sites, web appsMobile DeveloperSwift, Kotlin, Flutter Fitness trackers, finance apps Data Engineer SQL, Python, HadoopData pipelines, ETL processesDevOps EngineerDocker, Kubernetes, CI/CD Scalable cloud deployments Game DeveloperC++, Unity or Unreal Engine2D/3D games, VR experiences

Common Beginner Pitfalls (and How to Avoid Them)

Skipping Fundamentals – Dive into syntax but also learn problem-solving foundations.

Tutorial Hell – Move from following tutorials to building original projects sooner rather than later.

Fear of Errors – Bugs are normal; use debugging tools and embrace iteration.

Learning in Isolation – Share your code for feedback and pair-program with peers.

Conclusion

Programming is both an art and a science. It empowers you to automate tasks, create innovative solutions, and communicate with machines in structured, logical ways. Start small, stay curious, and leverage community resources to keep your momentum. With practice, perseverance, and a willingness to learn, you’ll soon transform ideas into functional software—and perhaps inspire others to code as well.

[wardensantoineandevka]

I'm playing a d&d character so suspicious of others and assumes bad faith of everyone that my DM felt accomplished when I announced tonight that I was moving an NPC from the "others" section of my notes to "allies" (and is currently the only resident there) after he, like everyone else, started in "enemies"

[mit-llusion]

introduction. hi :)

hello!!

i wanted to document my process of learning to code :) it's something i've always been interested in, but never got to, because i felt like it would take too much time to become good. well, the time will pass anyways, i need a project to stay sane. i have adhd, so it's somewhat of a developing hyperfixation / special interest for me.

i was using sololearn to learn, before i got paywalled :/ -- now i'm using freecodecamp and will probably also use codeacademy. on freecodecamp, i'm doing the certified full stack developer program which will (from my understanding) teach me to code front-end / client side as well back-end. i knew some HTML to begin with, but so far i've finished the basics of HTML mini-course and am on to structural HTML. After the full HTML topic, the course teaches me CSS, Java, Back-End Javascript and Python.

LONG STORY SHORT!! let's be friends, because i love doing this. also i need help. and advice. so much of it. m

[inkblotfeathers]

meet the student

hello! my name is ash *:･ﾟ✧

i'm a human services/social work student! i'm also very interested in video game development, cooking, and a bunch of other things (including pokemon!!).

i follow from @takentosilenthill!! i post anything and every thing there.

i am also disabled (depression, anxiety, am paranoid, am a hypochondriac, run risk of heat exhaustion, have sensory issues, get exhausted easily, am scared of needles and talk about medical procedures, ie an iv being put in someone (i feel nauseous, faint), and i suspect that i have either: asd, adhd, bpd, or bipolar) so i may post about that here as well.

[hearts4katsuki]

HEY Y'ALL!!

This is a little self-intro because WHY NOT!!

My name is Kai, but I also go by Sam.

I'm just a weird art kid that wants to survive in this world >:3

I LOVE mha, pjsk, deathnote, jjk, Jojo, and lot more!!

My top kins are Katsuki Bakugou and Mizuki Akiyama <3

I have a whole ton of socials so if y'all want any just req me >:3

I'm also obsessed with coding, and I wanna be a Computer Engineer!!

I speak English, Greek, German, Italian, and a bit of Japanese. I also know ASL!! My first languages are Greek and German tho.

THAT'S IT BAI!! I HOPE WE CAN BE FRIENDS!!

[mitchell-nihil]

Pandora Program Introductory Post

The Pandora Program is a program run by the Canadian government to help superpowered teenage criminals with exceedingly long prison sentences work off their time quickly by doing dirty work for the government. It’s known about by the general population, but is believed to be a private school.

Their world takes in one similar to ours, but in which about 4% of the population has a special power. Different countries have different approaches to handling these powers, and views on them are varied. The Pandora Program, or just Pandora as I call it, focuses on Varen, a member of the program, and the missions and assignments he handles alongside other members, and about the different groups in the world that have formed from these powers.

This will be updated as more about the story is made concrete. Any questions, prompts or thoughts about my writing or characters is greatly appreciated and I will always love them!

Characters

Varen Voclain

As said, Varen is the main character. His power is complicated, and the higher-ups in the program have taken a special interest in his abilities, meaning he and his group get the harder missions and routine training, something they mildly despise him for causing. He’s roommates with Nat, and tentatively considers him a friend. He’s quite a recluse, and a very guilty person, so he fully believes he belongs in the program and sees it as a fitting punishment. He likes certain video games, sleeping, and is very protective of his long hair, which he had initially grown out to annoy his parents. Bad at picking up jokes and social cues, he often comes off as a bit off-putting to others.

Constant eye bags, a nasty scar across his face, and baggy clothes are his signature accessories. He also has a pair of simple earrings and slitted pupils similar to a cat’s, a semi-common feature in his world. They do get bigger when he’s in the dark and can make him look a little silly. He’s 18, and I haven’t been able to decide on his birthday yet.

Nathair Vaughan

He exclusively goes by Nat. He’s 19, and has been in the program since 16 after killing someone just moments after his power developed. His “power” is that anyone who makes skin-to-skin contact with him will turn into a stone statue. It’s not something that he can turn off, making it a very isolating power for someone as extroverted and physically affectionate as himself. It’s an unusual power, because almost no power’s sole purpose is to kill. To destroy or maim, maybe, but something only to kill is unheard of besides himself.

He wears a lot of clothing to protect others, and is put into an “active” group, one that does the physical work on missions, as an easy way to take someone out if needed. After the events of his sixteenth birthday, he is much more cautious when others get close to him and is very proactive about keeping them away from himself. This leads him to isolate himself despite being extroverted, and so Varen’s his first friend in a while. He takes great fun in annoying Varen, and isn’t someone who experiences embarrassment, being unapologetically loud and crude sometimes. He was involved in the “incident” that took place a couple months before the story starts.

White hair is similar to orange hair in their world, as unlike other unique hair colours it is passed down through generations. It’s a bit less uncommon than orange hair, but by far not the rarest hair colour.

Stelle Fraser

Stelle is a member of Varen and Nat’s group, with the ability to create and control the movement of light. She originally was placed in the Mayflower campus in Nova Scotia, but was considered a “problem case” and so was sent to the Trillium campus in Ontario so she could be better monitored. She’s a bit of a grump, but since being transferred seems to be in a better mood. The most honest of the group, she and Varen get along surprisingly well. She’s 19, and has been in the program for a while.

Atlas

Atlas currently doesn’t have any official art of him, for some reason. He’s able to create portals that can be travelled through and have very little limits in terms of how far they can be from each other, but I haven’t decided on other details like where he can make them. Hates the program and copes by making jokes about it, lied to Varen that the reason he was missing his leg is because the crimes he committed were so terrible that prison wasn’t enough. He was given the choice between having his power artificially suppressed or having a tracking chip put into his body, as his power was too dangerous to leave unchecked and he could easily leave. He has black hair, glasses, is 20, and is missing the lower half of his left leg.

He makes up stories about what terrible things he did with his power and how he lost his leg, but really he had it amputated as a child for medical reasons and it isn’t a cool story at all.

Charlotte

Charlotte is in the same group as Varen, Nat, Stelle, and Atlas, and in my opinion has the best power. While it’s not entirely decided on everything she can do, her main feature is obviously her six arms. She’s quite chatty and a very genuine and positive person, getting along well with everyone in the group. She and Nat can goof off together, she and Varen have a lot of nice conversations with each other, she and Stelle have a bit of a tendency to gossip, and Atlas is like an older brother to her, as she’s the youngest in the group at 17 years old. One of the people in the program where you really can’t imagine what got her put in a place like this.

Holds the world record for most limbs, spent a lot of her childhood in doctors offices and hospitals, and has signed about a million different contracts that no, she does not want to donate her body to science when she dies.

Kase

I’ve talked a lot about Kase, but I’ll do it as many times as I can. Kase has the ability to see into the future by using cartomancy, something similar to tarot readings but that he uses a deck of playing cards to do it. He can summon decks out of thin air and ask them any question, but the answers will vary and as card readings tend to go, the answers are always vague.

From the outside he looks pretty laid-back and relaxed, but really he harbours quite a bit of anxiety that his future-reading power definitely didn’t help. He’s developed a tendency to ask his cards just about any question that comes to mind, and those eye-bags aren’t just insomnia. You could almost describe it as an “addiction” to knowing; being able to know the answers to all these questions he has only makes him even more stressed out when he doesn’t know something.

A nice person who’s quite popular, nobody knows why he chooses to spend so much of his time with someone like Blaine.

Blaine

Blaine is the red haired one, and he is very rarely seen without Kase by his side, and despite his best efforts to make others think he finds Kase annoying, it’s obvious the two of them are close. I haven’t made any detailed/solo art of him, so besides this page of him and Kase no drawings of him exist yet. These drawings of Kase are older, he looks more similar to the drawing of Kase I have under his actual section.

Blaine has the ability to control animals by whistling. I was originally inspired by stories in Canada from Indigenous people, about whistling at night and creatures I won’t say the names of. I did more research on legends about whistling at night, as basically any culture refers to it as something bad and dangerous. Currently, Blaine can make animals do whatever he wants by whistling within range of them hearing. He grew up in Canada, as most of them have, and heard the stories about deer walking on their hind legs. This made him decide whenever he did his animal-controlling stuff that he would make all the animals walk around on their hind legs, to freak people out. That fact alone I feel sums up Blaine’s personality pretty well; he likes scaring people and pissing them off. It’s a hobby of his.

Blaine even being able to make a single friend is a surprise to anybody who has met him, as anybody could tell you five different times he was needlessly cruel to them or their friend. Nobody knows why he acts like this, including me. He’s a dick.

Angie

Angie is a member of the program, and enjoys being a nuisance to the staff there. She has control over her own radio station where she’ll plays songs and do little morning talks and announcements. It’s become a fun little thing that most members of the program enjoy, so staff aren’t too hard on her about it. She has the ability to create bursts of electricity and can travel through electrical currents. The program made the entire electrical system of the campus self-contained so that she couldn’t get out.

Vitri

Vitri is the leader of a group that I haven’t named yet, but is basically a collection of ex-members of the program who work together to have it taken down. He was in the first group of kids that the program was run with, a test batch to see how it would work. From 15-21 he was a member of the program, and quite a passionate one. For reasons unknown, he suddenly left the program and was nowhere to be seen for nearly 10 years, before suddenly reppearing and starting to look for people to join his cause. They believe the program is exploitative, manipulative, and abusive, and should be eradicated. When he first started this resistance, he and his members genuinely wanted to help the kids still in it, but as time passed Vitri became more destructive than helpful with his intentions.

Vitri has the ability to manipulate glass. There’s very little limits to what he can do, besides not being able to fuse glass together by himself. He lost a couple fingers when he was first learning to use his power.

Vitri takes a special interest in Varen, who he calls “one of the special ones”, a group of people with powers that go far and far beyond what a normal power can do.

Mirai

Ipvne oef poi nxppvpf xb pyeias xunvytd amza, hrq yseviz wua bwrz as oa htnna ss poi cnvkewt hrowmga alrnl freuk ak yipkyhf km lrn, kinz vv nhpzr.

Although I love all my characters, I think if I was someone reading Pandora instead of the one making it, Mirai would definitely be my favourite. She works alongside Vitri as one of the leaders of the resistance group, and is “one of the special ones” as Vitri says. She’s erratic, mysterious, and a little bit crusty. Seems to know a lot of things and a lot of people.

“J”

He currently doesn’t have a name, but is one of my newer characters and has the ability to duplicate other peoples powers. He does this by obtaining some of their DNA and dropping it into his third eye, which will change to look like that persons eye. It’s very temporary, and anything other than hair will only work for a few seconds, so he favours using hair over other items.

A jock is the best way I can describe him. He works for Vitri and was involved in the “incident” that happened a couple months before the story starts. He seems like a pretty normal guy, if gym bros can be considered normal, and is over-enthusiastic and I’m imagining horribly dyslexic. Carries around a fanny-pack kinda thing around his waist that he carries/hangs hair he’s gathered off of.

Some Basics

Powers are developed on someone’s birthday, within minutes of their exact time of birth. The vast majority of powers develop from 12-18, but there are some younger and older exceptions.

The other two prevalent groups in the story that I haven’t fleshed out much yet are a doomsday sort of cult, who believes the development of powers is going to lead to an apocalypse. The other group believes basically the opposite, that powers were given to special people who have a birth-given right to be leaders and think that they and other power-havers should be the one’s managing the world.

There’s about 360 members of the program at the Trillium campus, ranging from 15-21.

While it’s true that only teenagers are put into the program, some will be put in as a teenager and age into 20 or 21 and remain there. If someone commits whatever crimes and are 20-21 but haven’t been put into the program already, they’ll be advanced into the Agency.

The Agency is similar to the Program, but holds older and usually more experienced members. They are not put into teams like the Program kids are, and do a lot more solo missions and are allowed to live amongst society. The Agency, what they do, and what their agents have done, is well known to the public, and anybody who makes it known they are apart of it are usually avoided, because as stated someone getting put into the Program and Agency is done so because they committed some sort of crime bad enough to warrant going to prison, and all of them have powers.

People with powers garner mixed opinions from people. Some think it’s unfair to treat them differently, while others think that they hold a lot more potential power than the average person does and should be monitored regularly. People whose powers affect their physical form are often subject to scrutiny.

4% of the population has powers, but that’s only an estimate and is actually higher than the recorded amount of people with powers, because it’s estimated only 3/4 people with powers have one that is either significant or discoverable enough. About 1/4 of that estimated 4% have such mundane or specific powers that they are indistinguishable from other people.

Until only recently, in Canada, if you murdered multiple people you could get multiple life sentences. In recent year, that policy was abolished because it was categorised under “cruel or unusual punishment”. In the world of Pandora, this policy is still active.

Crimes committed using powers are taken incredibly seriously, and often a fine or prison sentence can be doubled simply because the person committing it might have used their power to do it. While it’s meant to be extra incentive to stop people from abusing powers, it’s often abused in the legal world.

Thank you for reading this far, if you have! I know this is a lot, but I talk a lot about this story and I want people to be able to learn some of the basic stuff about what I’m talking about. One thing I’ve always been open to but have never really mentioned is that if you ever want to send me a drawing prompt about my own characters, no matter how mundane or extreme, I’ll always try my best to do it! People showing that sort of interest in my stuff is super cool :)

[vespidwasp]

I worked on my album today #myalbum and its going so so well i gathered a bunch of songs i have and worked on some new ones and revised some old ones and decided the order theyre going to go in. From here i need to finish the unfinished songs, add song transitions, probably add intro and outro tracks, then I need to name my songs and make an album cover. Also i'll have to figure out where/how to release it but that can come later i guess. Technically i dont have to "release" it anywhere but ngl it would be pretty satisfying to see my work on bandcamp or something. I guess the funniest thing i could do is post every song on one tumblr post haha. Anyway i have a rought estimate on the length of the album its gonna be like 25-30min long which feels like a lot considering i never did this before. Pretty awesome

[girliestwomaninstem]

introductory post (⁠◍⁠•⁠ᴗ⁠•⁠◍⁠)⁠✧⁠*

Hellooo <3 I've been on Tumblr for a few years now, however, lately I have become a bit of a slacker in terms of my student and professional life and a lot of y'all have inspired me to get a studyblr + accountability blog to help keep myself in check, focused and driven

🌻 about me ♡

name: tofu

age: 23

pronouns: she/her

zodiac: ⊙ aries, ☽ scorpio, ↑ scorpio

languages I speak: english, hindi, japanese (beginner)

🌻 my favourite subjects ♡

- academic: chemistry, cybersecurity, creative writing, biology, personal finance, physics, discrete math, intro to programming (the easiest part about a cs degree yet daunting)

- non-academic: cosmetic science, psychology, literature, ancient/modern history, physics, astronomy, linguistics

I'm trying to once again pick up hobbies that I used to have as a child, such as reading, singing, gardening, cooking/baking, scrapbooking

In my free time, I love watching asian soap operas, Studio Ghibli, and sitcoms that I'd like to call my comfort shows and video essays related to all my non-academic subject interests

I'm an undergrad student currently enrolled in a computer science/fintech double major and I'm preparing either to enter the workforce or pursue a masters in either quantitative finance or bioinformatics engineering or data science (wow, the existential crisis that came with typing up that sentence). I could also talk more about my interests in the above-mentioned subject areas, or new ones as they come up. My goal is to create a routine for myself that I can actually stick to, and spend each day having learnt at least something, no matter how small. I feel like the only way to achieve that is by comparing myself to my peers (I know that is v toxic but hey it helps). Additionally I really want to learn how to drive this year, learn to crochet and keep up with new technologies, do some art journalling to take my mind off stress.

I'm so excited to meet new people on here and keep myself busy and productive! ❤️

[lightuponearth]

introduction post ✩‧₊˚

hello everyone, welcome to my silly little blog <3 i'm not new to tumblr, but it has been years since i was active so... anyways! i'm shifting from twitter to here and i would love to gain some mutuals and friends. here are a few things about me :)

basic info!

- she/her, asian, 18, estj - self-learning french + coding - bs hons in computer science, software engineering: second year

interests!

☆ all things girly and pink ☆ literature ☆ writing, i'm an aspiring novelist ☆ crocheting ☆ films ☆ philosophy

this blog is honestly more of an online diary but it's definitely going to be a mix of studyblr, codeblr, langblr, productivity, and self improvement content. also do expect some ranting from time to time and me rambling abt my interests lol

quick links!

daily logs | other posts coming soon <3

[border-collie]

One of the ways I've found to be kinder to myself is reminding myself I'm an animal and functionally I behave like one. It's easy to get caught up on things you did in the past, but you don't judge a wolf for killing a fawn, so it's just as not fair to judge yourself for shit you did when you were a kid. Yeah you did stupid shit as a teen, that's what teens do.

[mit-llusion]

progress 2 - thur 3 april 2025

um okay so ignore that little skipping a part of my curriculum mishap. right now im working on a project in the "lab" portion of the course (where you work on your own little projects so they can test what theyve taught you). for this one, youre supposed to make a small, simple page for recipes. everything about my code registers as right except for the <meta charset=UTF-8> part. its not registering it :/ in case anyone has any advice.

help i dont know what ive done wrong.

[nintendont2502]

oh wait shit I don't have a single maths unit this semester. or. ever again

[august-codes]

~✰ Welcome to my studyblr! ✰~

about me:

august

they/xe

19

australia + native english speaker

i currently am doing some university level computer science subjects in order to qualify for my dream bachelor degree (information studies with a major in records and archive management)

learning python at university

self-taught in HTML, C++, Java, and JavaScript

interests:

video games (genshin, hsr, pokemon go, minecraft)

reading, mostly comics and fiction at the moment, but i like lots of genres

crochet - i have a chronic illness that makes it hard to crochet for very long but i really enjoy making small projects!!

what to expect:

study and uni updates obviously, basically trying to motivate me to study and do my assignments/quizzes on time :p

probably some student memes and the like too

fun facts + other stuff:

i have 2 cats! a calico and a grey tuxedo, and they are so silly

my favourite tea is chamomile with honey

as mentioned above, i have a chronic illness which makes it hard to do basically everything. if you have any tips for studying/staying on top of uni while being chronically ill or mentally ill hmu lol

i looooove listening to music! 100 gecs, ashnikko, chrissy chlapecka, scene queen, salems corydalis, twinkle park, the cure, and bts are some of my favourites

i also love podcasts!!!!! welcome to night vale, very really good, respect the dead, and some more news are all ones i listen to regularly

[the-smeagol-system]

Intro Post 2.0

[large text: Intro Post 2.0]

Hello, we’re the Smeagol System, formerly the Rat Hive System. We’re a programmed polyfragmented DID system of some number. This is our collective blog we have a few others for different members and subsystems. I’m bad at tech so I’m not sure how to link those but they do exist.

So uh us info:

- We are RAMCOA/OEA survivors

- We’re collectively trans, he/they unless otherwise specified

- We’re chronically ill both physically and mentally

- Minorly visually impaired

- AuDHD havers

- Fictive heavy, our Fictives are our most active and public parts

- Hosts name will not be shared you can call them Z

- We have a queer platonic partner system who I will try and figure out how to tag

- We’re generally pagan

- Anti non traumagenic systems, not because we don’t think they have real experiences that isn’t our place to say but because if they do we are so different we would like separate spaces. We are heavily disordered and want to interact with similar people. We don’t hate you, we just ask that you please avoid us as we avoid you

- Anti rad queers, especially the transRAMCOA people, those are people we do hate

- Anti pro shipping stuff

Interest wise we all differ but some general ones are:

- Crime/rescue shows

- Animals, especially sharks and bats

- Drawing and writing

- Psychology

- Pokemon

- Dumb mobile games

Do not interact list:

- Radqueers

- “Transabled” people

- Proshippers

- Endos/non traumagenic systems as stated above

- Bigots, aka abelists, homophobes, transphobes, racists, all that stuff

Otherwise I hope you enjoy our account.

[scentofpines]

in class today i felt so incredibly out of place again, why does it have to be so hard for me? and, i like this girl, but every single time we have class she mentions her "autism" while happily chatting with 3+ ppl at a time, completely effortless, while im sitting there, staring and trying to focus enough to even understand the conversation bc there is so much noise around me that i feel like i'm about to either explode or shut down completely and i feel like an alien trying my best to somehow socialize and understand what is going on and really to just get through this.