# 3. Guessing Game

## Process a Guess

You can either write over your Hello World program or you can create a new repl.it project. Do not just add a new file in repl.it!

{% code title="main.rs" %}

```rust
use std::io;

fn main() {
    println!("Guess the number!");

    println!("Please input your guess.");

    let mut guess = String::new();

    io::stdin().read_line(&mut guess)
        .expect("Failed to read line");

    println!("You guessed: {}", guess);
}
```

{% endcode %}

Let's go ahead and run it:

![](https://2720625490-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LBlB5eCVilPmyCc9hb0%2F-LBlSURMVV3zkjDhOHC0%2F-LBlUDHrygnnUwFCf338%2FScreen%20Shot%202018-05-05%20at%202.07.10%20PM.png?alt=media\&token=fd5b292f-7a86-43bb-9e83-3a62d21dc2c8)