include <stdio.h>
include <stdlib.h>
void f(int num,int n,int a[][n],int hang1,int lie1){
a[hang1][lie1]=num;
if(num==n*n){return;}
int nexthang,nextlie;if(hang1==0&&lie1!=n-1){//a[n-1][lie1+1]=++num;nexthang=n-1;nextlie=lie1+1;//return f(num,n,a,n-1,lie1+1);
}
else if(lie1==n-1&&hang1!=0){//a[hang1-1][0]=++num;nexthang=hang1-1;nextlie=0;//return f(num,n,a,hang1-1,0);
}
else if(hang1==0&&lie1==n-1){//a[hang1+1][lie1]=++num;nexthang=hang1+1;nextlie=lie1;//return f(num,n,a,hang1+1,lie1);
}
else if(hang1!=0&&lie1!=n-1){if(a[hang1-1][lie1+1]==0){//a[hang1-1][lie1+1]=++num;nexthang=hang1-1;nextlie=lie1+1;//return f(num,n,a,hang1-1,lie1+1);}else{//a[hang1+1][lie1]=++num;nexthang=hang1+1;nextlie=lie1;//return f(num,n,a,hang1+1,lie1);}
}
else{return;}
return f(num+1,n,a,nexthang,nextlie);
}
int main(){
int n;
scanf("%d",&n);
int a[n][n];
int hang,lie;int num=1;
for(hang=0;hang<n;hang++){
for(lie=0;lie<n;lie++){
a[hang][lie]=0;
}
}
f(1,n,a,0,(n-1)/2);
for(hang=0;hang<n;hang++){for(lie=0;lie<n;lie++){if(lie==n-1){printf("%d",a[hang][lie]);}else{printf("%d ",a[hang][lie]);} }if(hang!=n-1){printf("\n");}
}return 0;
}