#include<bits/stdc++.h>
using namespace std;
int a[105][105];
int main()
{
	int n;
	cin >> n;
	int x=1,y=n/2+1;
	a[x][y]=1;
	for(int l=2;l<=n*n;l++)
	{
		if(x==1&&y!=n)
		{
			a[x][y+1]=l;
			x=n;
			y++;
		}
		else if(x!=1&&y==n)
		{
			a[x-1][1]=l;
			x--;
			y=1;
		}
		else if(x==1&&y==n)
		{
			a[x+1][y]=l;
			x++;
			y=n;
		}
		else if(x!=1&&y!=n)
		{
			if(a[x-1][y+1]==0)
			{
				a[x-1][y+1]=l;
				x--;
				y++;
			}
			else
			{
				a[x+1][y]=l;
				x++;
			}
		}
	}
	for(int i=1;i<=n;i++)
	{
		for(int l=1;l<=n;l++)
		{
			cout << a[i][l] << ' ';
		}
		cout << endl; 
	}
	return 0;
}