#include<bits/stdc++.h>
using namespace std;
int main(){
	int i,j,n,a[15][15]={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+1-i][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: linzihang
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/