fn main() {
    let stdin = std::io::read_to_string(std::io::stdin()).unwrap();
    let mut stdin = stdin.split_ascii_whitespace();

    let n: String = stdin.next().unwrap().parse().unwrap();

    use std::io::Write;
    let mut out = std::io::BufWriter::new(std::io::stdout().lock());
    out.write_all(output(solve(n)).as_bytes()).unwrap();
}

fn solve(n: String) -> bool {
    match &n[..] {
        "1" => false,
        _ => true,
    }
}

fn output(ans: bool) -> &'static str {
    match ans {
        true => "Petr\n",
        false => "square1001\n",
    }
}