package suzu;

import java.util.Scanner;

public class mofangge {

public static void main(String[] args) {

Scanner m = new Scanner(System.in);

int n = m.nextInt();

mofang(n);

}

public static void mofang(int n)

{

int i = 0,j = 0;

int x =0,y=0;

int k = 1;

int a[][] = new int[5][5];

i=0;

j=n/2;

a[i][j]=k++;

for(;k<=n*n;k++)

{

x=i;

y=j;

i--;

j++;

if(i<0)  i=n-1;

if(n>n-1)  j=0;

if(a[i][j]!=0) 

{

a[x+1][y]=k;

            i = x+1;

            j = y;

}

else 

a[i][j]=k;

}

for(i=0;i<n;i++) {

for(j=0;j<n;j++) {

System.out.println(a[i][j]);

System.out.println();

}

}

}

}