use std::collections::VecDeque;


fn main() {
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let n: usize = n.trim().parse().unwrap();

    let mut base = (1..=n).collect::<VecDeque<usize>>();
    for _ in 0..n {
        println!("{}", base.iter().map(|&i| i.to_string()).collect::<Vec<_>>().join(" "));
        let val = base.pop_front().unwrap();
        base.push_back(val);
    }
}