#include<bits/stdc++.h>
using namespace std;

int main () {
	int n; cin >> n;
	int a[n*2+1][n*2+1];
	for (int i = 0; i < n*2+1; i++) {
		for (int j = 0; j < n*2+1; j++) {
			a[i][j] = 0;
		}
	}
	int w = n;
	int idx = 0;
	while (w >= 0) {
		for (int i = idx; i < n*2+1-idx; i++) {
			for (int j = idx; j < n*2+1-idx; j++) {
				a[i][j] = w;
			}
		}
		w--;
		idx++;
	}
	for (int i = 0; i < n*2+1; i++) {
		for (int j = 0; j < n*2+1; j++) {
			cout << setw(2) << a[i][j];
		}
		cout << endl;
	}
	return 0;
}