#include<bits/stdc++.h>
int n,i,j,k,a[40][40]={0};
using namespace std;
int main()
{
	freopen("2015magic.in","r",stdin);
	freopen("2015magic.out","w",stdout);
	ios::sync_with_stdio(false);
	cin>>n;
	for(i=0;i<n;i++)
		for(j=0;j<n;j++)
		a[i][j]=-1;
		a[0][n/2]=1;
		i=0;
		j=n/2;
		for(k=2;k<=n*n;k++){
		if(i==0&&j!=n-1)
		{
		a[n-1][j+1]=k;
			i=n-1;j=j+1;
		}
		else if(j==n-1&&i!=0)
		{
			a[i-1][0]=k;
			i=i-1;
			j=0;
		}
		else if(i==0&&j==n-1)
		{a[1][n-1]=k;
			i=1;j=n-1;
		}
		else if(i!=0&&j!=n-1&&a[i-1][j+1]==-1){a[i-1][j+1]=k;i=i-1;j=j+1;}
		else if(i!=0&&j!=n-1&&a[i-1][j+1]>0){a[i+1][j]=k;i=i+1;}}
for(i=0;i<n;i++)
	{for(j=0;j<n;j++)
cout<<a[i][j]<<' ';
			cout<<"\n";

}	
return 0;	
}