fn main() {
    input!{
        n: usize,
    }
    let mut res = vec![vec![0; n + 2]; n + 2];
    for i in 0..(n + 2) {
        res[0][i] = 1000;
        res[n + 1][i] = 1000;
        res[i][0] = 1000;
        res[i][n + 1] = 1000;
    }
    let mut pos = (1_usize, 1_usize);
    for num in 1..=(n * n) {
        let (i, j) = pos;
        res[i][j] = num;

        if res[i][j + 1] == 0 && res[i][j - 1] > 0 && res [i - 1][j] > 0 {
            pos.1 += 1;
        } else if res[i + 1][j] == 0 && res[i][j + 1] > 0 && res[i - 1][j] > 0 {
            pos.0 += 1;
        } else if res[i][j - 1] == 0 && res[i][j + 1] > 0 && res[i + 1][j] > 0 {
            pos.1 -= 1;
        } else if res[i - 1][j] == 0 && res[i][j - 1] > 0 && res[i + 1][j] > 0 {
            pos.0 -= 1;
        }
    }

    for i in 1..(1 + n) {
        for j in 1..(1 + n) {
            print!("{:03} ", res[i][j]);
        }
        println!();
    }
}

#[macro_export]
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        #[allow(unused_mut)]
        let mut s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}

#[macro_export]
macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};

    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

#[macro_export]
macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };

    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };

    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };

    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };

    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}