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## talking
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### Instructions
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Build the function `talking` that will allow you to talk with your computer.
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His answers will be created by you following the rules below.
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- He answers "There is no need to yell, calm down!" if you yell at him, for example "LEAVE ME ALONE!"
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(it is consider yelling when the sentence is all written in capital letters).
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- He answers "Sure" if you ask him something without yelling, for example "Is everything ok with you?"
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- He answers "Quiet, I am thinking!" if you yell a question at him. "HOW ARE YOU?"
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- He says "Just say something!" if you address him without actually saying anything.
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- He answers "Interesting" to anything else.
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### Notions
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- https://doc.rust-lang.org/book/ch18-00-patterns.html
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### Expected functions
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```rust
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pub fn talking(text: &str) -> &str {}
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```
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### Usage
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Here is a program to test your function.
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```rust
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use talking::talking;
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fn main() {
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println!("{:?}", talking("JUST DO IT!"));
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println!("{:?}", talking("Hello how are you?"));
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println!("{:?}", talking("WHAT'S GOING ON?"));
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println!("{:?}", talking("something"));
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println!("{:?}", talking(""));
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}
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```
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And its output
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```console
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student@ubuntu:~/[[ROOT]]/test$ cargo run
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"There is no need to yell, calm down!"
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"Sure."
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"Quiet, I am thinking!"
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"Interesting"
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"Just say something!"
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student@ubuntu:~/[[ROOT]]/test$
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```
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