#include <iostream>
#include <cstdio>
#include <cmath>
#include <cstring>
#include <algorithm>
#include <vector>
#include <queue>
#include <set>
#include <map>
#define INF 0x3f3f3f3f
#define lowbit(x) (x&(-x))
using namespace std;
typedef long long ll;

int main()
{
	int n;
	while(~scanf("%d",&n))
	{
		n++;
		for(int i=1;i<=n;i++)
		{
			int tp = (i-1)*i/2+1;
			for(int j=i+1;j<=n;j++)
			{
				printf("%d",tp);
				tp += j;
				j == n ? printf("\n") : printf(" ");
			}
		}
			
	}
}