9
 8
 6
 4
 7
 5
 2

1  2  3  4  5  6  7  8 
2  4  6  8 11 13 15 17 
3  6 10 13 16 20 23 26 
4  8 13 17 22 26 31 35 
5 11 16 22 27 33 38 44 
6 13 20 26 33 40 46 53 
7 15 23 31 38 46 54 62 
8 17 26 35 44 53 62 71 
 1  2  3  4  5  6  7 
2  4  6 10 12 14 16 
3  6 11 14 17 22 25 
4 10 14 20 24 30 34 
5 12 17 24 31 36 43 
6 14 22 30 36 44 52 
7 16 25 34 43 52 61 
 1  2  3  4  5 
2  4 10 12 14 
3 10 13 20 23 
4 12 20 24 32 
5 14 23 32 41 
 1  2  3 
2 10 12 
3 12 21 
 1  2  3  4  5  6 
2  4  6 11 13 15 
3  6 12 15 21 24 
4 11 15 22 26 33 
5 13 21 26 34 42 
6 15 24 33 42 51 
 1  2  3  4 
2  4 11 13 
3 11 14 22 
4 13 22 31 
 1 

import java.io.*;
import java.util.*;

public class H {
	static int k;
	public static void main(String arg[])throws Exception{
		BufferedReader bff = new BufferedReader(new InputStreamReader(System.in));
		BufferedWriter wff = new BufferedWriter(new OutputStreamWriter(System.out));
		
		k = Integer.parseInt(bff.readLine());
		
		int[][] mat = new int[k - 1][k - 1];
		
		for(int i = 1; i < k; i++)
			for(int j = i; j < k; j++){
				mat[i - 1][j - 1] = radix(i * j);
				mat[j - 1][i - 1] = mat[i - 1][j - 1];
			}
		
		for(int i = 0; i < k - 1; i++){
			for(int j = 0; j < k - 1; j++){
				if(j != 0)
					wff.write(" ");
				wff.write(mat[i][j] + "");
			}
			wff.newLine();
		}
		wff.flush();
	}
	static int radix(int n){
		return (n / k) * 10 + (n % k);
	}
}
