Error Handling with Result in Rust

fn main() {
    let s1 = "42";
    match s1.parse::<i32>() {
        Ok(n) => println!("{}", n),
        Err(_) => println!("Invalid"),
    }
    let s2 = "not a number"r";
    match s2.parse::<i32>() {
        Ok(n) => println!("{}", n),
        Err(_) => println!("Invalid"),
    }
}