NumberTable

import java.util.Scanner;

public class NumberTable {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = Integer.parseInt(scanner.nextLine());

            for (int row = 0; row < n; row++) {
                for (int col = 0; col < n; col++) {
                   int num = row + col + 1;
                    if (num > n){
                       num = 2*n - num;
                }
                System.out.print(num + " ");
            }
                System.out.println();
        }
    }
}