fn solve() -> usize {
    let mut p = String::new();
    std::io::stdin().read_line(&mut p).ok();
    let p: usize = p.trim().parse().unwrap();
    if p == 2 {
        2
    } else {
        (p-1) * (p-1)
    }
}

fn main() {
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let n: usize = n.trim().parse().unwrap();
    let mut result = Vec::with_capacity(n);
    for _ in 0..n {
        result.push(solve());
    }
    for &v in result.iter() {
        println!("{}", v);
    }
}