#include <fstream>
using namespace std;
ifstream fin("2015magic.in");
ofstream fout("2015magic.out");
int n,magic[40][40]={0};
int main()
{
	int n,i,j,m,k;
	fin>>n;
	k=(n+1)/2;m=1;
	magic[m][k]=1;
	for(i=2;i<=n*n;i++)
	{
		if(m==1&&k!=n)
		{	
			magic[n][k+1]=i;
			m=n;k+=1;
			continue;
		}
		if(m==1&&k==n)
		{
			magic[m+1][k]=i;
			m+=1;
			continue;
		}
		if(m!=1&&k==n)
		{
			magic[m-1][1]=i;
			m-=1;k=1;
			continue;
		}
		if(m!=1&&k!=n&&magic[m-1][k+1]==0)
		{
			magic[m-1][k+1]=i;
			m-=1;k+=1;
			continue;
		}
		if(m!=1&&k!=n&&!(magic[m-1][k+1]==0))
		{
			magic[m+1][k]=i;
			m+=1;
			continue;
		}
	}
	for(i=1;i<=n;i++)
	{
		for(j=1;j<=n;j++)
		{
			fout<<magic[i][j]<<' ';
		}
		fout<<endl;
	}
	fin.close();
	fout.close();
	return 0;
}