#include <iostream>
#include <cstring>
using namespace std;

int main(){
	int n;
	cin >> n;
	
	int a[n][n];
	memset(a,0,sizeof(a));
	int x=0,y=n/2;
	for(int i=1;i <= n*n;i++){
		a[x][y] = i;
		if(a[(x-1+n)%n][(y+1+n)%n] == 0){
			x--;
			y++;
		}
		else x++;
		
		if(x >= n) x -= n;
		if(x < 0) x += n;
		if(y >= n) y -= n;
		if(y < 0) y += n;
	}
	
	for(int i=0;i < n;i++){
		for(int j=0;j < n;j++){
			cout << a[i][j] << ' ';
		}
		cout << endl;
	}
	
	return 0;
}