#include<bits/stdc++.h>
using namespace std;
int n,a[20][20];
int main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			if(i+j<=n+1)a[i][j]=j;
			else a[i][j]=n+1-i;	
		}
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			cout<<setw(3)<<a[i][j];
		}
		cout<<endl;	
	}


	return 0;
}

/**************************************************************
	Problem: 1201
	User: wuzihang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/