use std::io::{self, Write};

fn find_nemo(word: &str) -> Option<usize> {
    for (i, word) in word.split(" ").enumerate() {
        if word == "Nemo" {
            return Some(i + 1);
        }
    }

    None
}

fn main() {
    let mut buffer = String::new();

    print!("Insert your words: ");
    io::stdout().flush().expect("Failed to flush stdout.");

    io::stdin()
        .read_line(&mut buffer)
        .expect("Error while trying to read from stdin.");

    let nemo = find_nemo(&buffer);

    match nemo {
        Some(x) => println!("I found Nemo at {}!", x),
        None => println!("I can't find Nemo :("),
    }
}