#include <iostream>
using namespace std;
int main() {
int n;
while(cin >> n) {
if (n==0) {
break;
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
cout << abs(i - j) + 1 << " ";
}
cout << endl;
}
cout << endl;
}
return 0;
}