#include <iostream>
#include <iomanip>
using namespace std;
int main() {
    int a[15][15], i, j, n;
    cin >> n;
    for (i = 1; i <= n; i++) {
        for (j = 1; j <= n + 1 - i; j++) {
            a[i][j] = i;
        }
        for (j = n + 2 - i; j <= n; j++) {
            a[i][j] = n - j + 1;
        }
    }
    for (i=1; i <= n; i++) {
        for (j=1;j<=n;j++) {
            cout <<setw(3)<<a[i][j] ;
        }
        cout << endl; 
    }
    
    return 0;
}
/**************************************************************
	Problem: 1200
	User: panyuchen
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/