#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin>>n;
	for(int i=0;i<n;i++){
	    for(int j=0;j<n;j++){
	        int x=n-abs(i-j);
	        cout<<setw(3)<<x;
	    }
	    cout << endl;
	}
 	return 0;
}
/**************************************************************
	Problem: 1195
	User: sf751616
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/