fn return_word(input: &str, x: usize) -> Result<&str, &str> {
    let mut words = input.split_whitespace();

    if let Some(w) = words.nth(x - 1) {
        Ok(w)
    } else {
        Err("Not enough words")
    }
}

fn main() {
    println!("{:?}", return_word("potato cucumber santa snek", 3));
}