fn main() {
    println!("Hello, world!");

    let y = {
        let x = 3;
        x + 1
    };

    println!("The value of y is: {y}");

    another_function(32, 'a');
    let z = five();
    println!("the value of z is {z}");

    let x = plus_one(5);
    println!("the value of x is {x}")
}

fn another_function(a: usize, b: char) {
    println!("Another function. {a}, {b}");
}

fn five() -> i32 {
    5
}

fn plus_one(x: i32) -> i32 {
    x + 1
}