#include <iostream>
#include <iomanip>
using namespace std;

int main(){
	int a[10][10] = {0};
	int i,j,n;
	cin>>n;
	
	for (i = 0;i < n;i++){
		for (j = 0;j <= i;j++){
			a[i][j] = i + 1;
			a[j][i] = i + 1;
		}
	}
	
	for (i = 0;i < n;i++){
		for (j = 0;j < n;j++){
			cout<<setw(3)<<a[i][j];
		}
		cout<<endl;
	}
}
/**************************************************************
	Problem: 1199
	User: admin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/