use itertools::Itertools;
use proconio::input;

fn main() {
    input! {
        n: usize
    }
    let mut r = vec![vec![0; n]; n];
    let mut b = vec![vec![0; n]; n];
    for i in 0..n {
        for j in 0..n {
            if (i + j) % 2 == 0 {
                r[i][j] = i + 1;
                b[i][j] = j + 1;
            } else {
                r[i][j] = j + 1;
                b[i][j] = i + 1;
            }
        }
    }
    for row in r {
        println!("{}", row.iter().join(" "));
    }
    for row in b {
        println!("{}", row.iter().join(" "));
    }
}