#include <bits/stdc++.h>
using namespace std;

const int N = 30;
int n;
int res[N][N];

void get_triangle()
{
	for(int i = 1; i <= n; i ++)
	{
		for(int j = 1; j <= i; j ++)
		{
			if(j == 1 || j == i) res[i][j] = 1;
			else res[i][j] = res[i - 1][j] + res[i - 1][j - 1];
		}
	}
	
	for(int i = 2; i <= n; i ++)
	{
		for(int j = 1; j <= i; j ++)
			cout << res[i][j] << " ";
			
		cout << endl;
	}
}

int main()
{
	
	while(cin >> n)
	{
		memset(res, 0, sizeof res);
		get_triangle();
	}
	
    return 0;
}