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

    let mut grid = vec![vec![0usize; n]; n];
    for i in 0..n {
        for j in i..n {
            if i == j {
                if i % 2 == 0 {
                    grid[i][j] = 1;
                } else {
                    grid[i][j] = 2;
                }
            } else {
                grid[i][j] = 2;
            }
        }
    }
    for i in 0..n {
        println!("{}", grid[i].iter().map(|&v| v.to_string()).collect::<Vec<_>>().join(""));
    }
}