#include <iostream>
using namespace std;
int main()
{
    int n,a[400][400];
    cin>>n;
    for(int i=n;i>=1;i--)
    {
        for(int j=1;j<=n-i+1;j++)
        {
            a[i][j]=(n-i)*(n-i)+j;
        }
        for(int j=i;j<=n;j++)
        {
            a[j][n-i+1]=(n-i+1)*(n-i+1)-(n-j);
        }
    }
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=n;j++)
        {
            if(a[i][j]>=1&&a[i][j]<=9)
            {
                cout<<a[i][j]<<"   ";
            }
            else if(a[i][j]>=10&&a[i][j]<=99)
            {
                cout<<a[i][j]<<"  ";
            }
            else if(a[i][j]>=100&&a[i][j]<=999)
            {
                cout<<a[i][j]<<" ";
            }
            else if(a[i][j]>=1000&&a[i][j]<=9999)
            {
                cout<<a[i][j];
            }
        }
        cout<<endl;
    }
	return 0;
}