include[HTML_REMOVED]
include[HTML_REMOVED]
using namespace std;
int main(){
int a;
while(cin>>a,a){
for(int i = 1;i<=a;i++){
for(int j = 1;j<=a;j++){
int left = j,up = i ,down = a-i+1 ,right = a-j+1;
cout<<min(min(up,down),min(left,right))<<" ";
}
cout<<endl;
}
cout<<endl;
}
return 0;
}
```