#include<bits/stdc++.h>
using namespace std;
int a[50][50];
int main(){
	int n,x,y,num=0;
	cin>>n;
	n=2*n-1;
	x=1;y=n/2+1;
	a[x][y]=++num;
	while(num<n*n){
		if(num%n!=0){
			x--;y++;
			if(x==0)x=n;
			if(y==n+1)y=1;
		}
		else{
			x++;
			if(x==n+1)x=1;
		}
		a[x][y]=++num;
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			cout<<a[i][j]<<" ";
		}
		cout<<endl;
	}
	return 0;
}