fn main() {
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let n: usize = n.trim().parse().unwrap();
    let p = (0..n).map(|_| {
            let mut temp = String::new();
            std::io::stdin().read_line(&mut temp).ok();
            let temp: usize = temp.trim().parse().unwrap();
            temp
        })
        .collect::<Vec<_>>();

    for &v in p.iter() {
        if v == 2 {
            println!("2");
        } else {
            println!("{}", (v-1)*(v-1));
        }
    }
}