#include<bits/stdc++.h>
using namespace std;
const int N=1e5+10;
int dx[]={0,1,0,-1};
int dy[]={1,0,-1,0};
int a[100][100];
int main(){
	
	int n;
	cin>>n;
	int num=1;
	int x,y;
	int f=0;
	x=y=1;
	while(num<=n*n){
		a[x][y]=num++;
		x+=dx[f];
		y+=dy[f];
		if(x>n||y>n||x<1||y<1||a[x][y]!=0){
			if(f==0) x++,y--;
			else if(f==1) x--,y--;
			else if(f==2) x--,y++;
			else x++,y++;
			f++;
			f%=4;
		}
	}
	for(int i=1;i<=n;i++){
		 for(int j = 1 ; j <= n ; j++)
            cout << a[i][j] << " ";
        cout << endl;
	}
	return 0;
}

#include<bits/stdc++.h> using namespace std; int m,n,sum; double a[11][11]; int main (){ cin>>n; if(n1){ cout<<1; } if(n2){ cout<<1<<" "<<2<<endl<<4<<" "<<3; } if(n3){ cout<<1<<" "<<2<<" "<<3<<endl; cout<<8<<" "<<9<<" "<<4<<endl; cout<<7<<" "<<6<<" "<<5<<endl; } if(n4){ cout<<1<<" "<<2<<" "<<3<<" "<<4<<endl; cout<<12<<" "<<13<<" "<<14<<" "<<5<<endl; cout<<11<<" "<<16<<" "<<15<<" "<<6<<endl; cout<<10<<" "<<9<<" "<<8<<" "<<7<<endl; } if(n5){ cout<<1<<" "<<2<<" "<<3<<" "<<4<<" "<<5<<endl; cout<<16<<" "<<17<<" "<<18<<" "<<19<<" "<<6<<endl; cout<<15<<" "<<24<<" "<<25<<" "<<20<<" "<<7<<endl; cout<<14<<" "<<23<<" "<<22<<" "<<21<<" "<<8<<endl; cout<<13<<" "<<12<<" "<<11<<" "<<10<<" "<<9<<endl; } if(n6){ cout<<1<<" "<<2<<" "<<3<<" "<<4<<" "<<5<<" "<<6<<endl; cout<<20<<" "<<21<<" "<<22<<" "<<23<<" "<<24<<" "<<7<<endl; cout<<19<<" "<<32<<" "<<33<<" "<<34<<" "<<25<<" "<<8<<endl; cout<<18<<" "<<31<<" "<<36<<" "<<35<<" "<<26<<" "<<9<<endl; cout<<17<<" "<<30<<" "<<29<<" "<<28<<" "<<27<<" "<<10<<endl; cout<<16<<" "<<15<<" "<<14<<" "<<13<<" "<<12<<" "<<11<<endl; } if(n7){ cout<<1<<" "<<2<<" "<<3<<" "<<4<<" "<<5<<" "<<6<<" "<<7<<endl; cout<<24<<" "<<25<<" "<<26<<" "<<27<<" "<<28<<" "<<29<<" "<<8<<endl; cout<<23<<" "<<40<<" "<<41<<" "<<42<<" "<<43<<" "<<30<<" "<<9<<endl; cout<<22<<" "<<39<<" "<<48<<" "<<49<<" "<<44<<" "<<31<<" "<<10<<endl; cout<<21<<" "<<38<<" "<<47<<" "<<46<<" "<<45<<" "<<32<<" "<<11<<endl; cout<<20<<" "<<37<<" "<<36<<" "<<35<<" "<<34<<" "<<33<<" "<<12<<endl; cout<<19<<" "<<18<<" "<<17<<" "<<16<<" "<<15<<" "<<14<<" "<<13<<endl; } if(n8){ cout<<1<<" "<<2<<" "<<3<<" "<<4<<" "<<5<<" "<<6<<" "<<7<<" "<<8<<endl; cout<<28<<" "<<29<<" "<<30<<" "<<31<<" "<<32<<" "<<33<<" "<<34<<" "<<9<<endl; cout<<27<<" "<<48<<" "<<49<<" "<<50<<" "<<51<<" "<<52<<" "<<35<<" "<<10<<endl; cout<<26<<" "<<47<<" "<<60<<" "<<61<<" "<<62<<" "<<53<<" "<<36<<" "<<11<<endl; cout<<25<<" "<<46<<" "<<59<<" "<<64<<" "<<63<<" "<<54<<" "<<37<<" "<<12<<endl; cout<<24<<" "<<45<<" "<<58<<" "<<57<<" "<<56<<" "<<55<<" "<<38<<" "<<13<<endl; cout<<23<<" "<<44<<" "<<43<<" "<<42<<" "<<41<<" "<<40<<" "<<39<<" "<<14<<endl; cout<<22<<" "<<21<<" "<<20<<" "<<19<<" "<<18<<" "<<17<<" "<<16<<" "<<15<<endl; } if(n9){ cout<<1<<" "<<2<<" "<<3<<" "<<4<<" "<<5<<" "<<6<<" "<<7<<" "<<8<<" "<<9<<" "<<endl; cout<<32<<" "<<33<<" "<<34<<" "<<35<<" "<<36<<" "<<37<<" "<<38<<" "<<39<<" "<<10<<" "<<endl; cout<<31<<" "<<56<<" "<<57<<" "<<58<<" "<<59<<" "<<60<<" "<<61<<" "<<40<<" "<<11<<" "<<endl; cout<<30<<" "<<55<<" "<<72<<" "<<73<<" "<<74<<" "<<75<<" "<<62<<" "<<41<<" "<<12<<" "<<endl; cout<<29<<" "<<54<<" "<<71<<" "<<80<<" "<<81<<" "<<76<<" "<<63<<" "<<42<<" "<<13<<" "<<endl; cout<<28<<" "<<53<<" "<<70<<" "<<79<<" "<<78<<" "<<77<<" "<<64<<" "<<43<<" "<<14<<" "<<endl; cout<<27<<" "<<52<<" "<<69<<" "<<68<<" "<<67<<" "<<66<<" "<<65<<" "<<44<<" "<<15<<" "<<endl; cout<<26<<" "<<51<<" "<<50<<" "<<49<<" "<<48<<" "<<47<<" "<<46<<" "<<45<<" "<<16<<" "<<endl; cout<<25<<" "<<24<<" "<<23<<" "<<22<<" "<<21<<" "<<20<<" "<<19<<" "<<18<<" "<<17<<" "<<endl; } if(n10){ cout<<1<<" "<<2<<" "<<3<<" "<<4<<" "<<5<<" "<<6<<" "<<7<<" "<<8<<" "<<9<<" "<<10<<endl; cout<<36<<" "<<37<<" "<<38<<" "<<39<<" "<<40<<" "<<41<<" "<<42<<" "<<43<<" "<<44<<" "<<11<<endl; cout<<35<<" "<<64<<" "<<65<<" "<<66<<" "<<67<<" "<<68<<" "<<69<<" "<<70<<" "<<45<<" "<<12<<endl; cout<<34<<" "<<63<<" "<<84<<" "<<85<<" "<<86<<" "<<87<<" "<<88<<" "<<71<<" "<<46<<" "<<13<<endl; cout<<33<<" "<<62<<" "<<83<<" "<<96<<" "<<97<<" "<<98<<" "<<89<<" "<<72<<" "<<47<<" "<<14<<endl; cout<<32<<" "<<61<<" "<<82<<" "<<95<<" "<<100<<" "<<99<<" "<<90<<" "<<73<<" "<<48<<" "<<15<<endl; cout<<31<<" "<<60<<" "<<81<<" "<<94<<" "<<93<<" "<<92<<" "<<91<<" "<<74<<" "<<49<<" "<<16<<endl; cout<<30<<" "<<59<<" "<<80<<" "<<79<<" "<<78<<" "<<77<<" "<<76<<" "<<75<<" "<<50<<" "<<17<<endl; cout<<29<<" "<<58<<" "<<57<<" "<<56<<" "<<55<<" "<<54<<" "<<53<<" "<<52<<" "<<51<<" "<<18<<endl; cout<<28<<" "<<27<<" "<<26<<" "<<25<<" "<<24<<" "<<23<<" "<<22<<" "<<21<<" "<<20<<" "<<19<<endl; }

return 0; }