#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: lihean
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/