#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i,j,a[11][11]={0};
	cin>>n;
	for(i=1;i<=n;i++){
		for(j=1;j<=n+1-i;j++){
			a[i][j]=i+j-1;
		}
		for(j=n;j>=i;j--){
			a[n-i+1][j]=n+i-j;	
		}
			
	}
	for(i=1;i<=n;i++){
		for(j=1;j<=n;j++){
			cout<<setw(3)<<a[i][j];
		}
		cout<<endl;	
	}
}
/**************************************************************
	Problem: 1193
	User: panyuchen
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/