#include
using namespace std;
int main() {
int n;
cin>>n;
for(int i=1;i<=n;i++){
//decreasing no
int val=n;
if(i==n){
for(int j=0;j<=i;j++){
cout<<val<<" ";
val--;
}
val=val+2;
for(int j=1;j<=i;j++){
cout<<val<<" ";
val++;
}
cout<<endl;
}
else{
for(int j=1;j<=i;j++){
cout<<val<<" ";
val--;
}
//spaces
for(int s=1;s<=(n*2)-(2*i-1);s++){
cout<<" "<<" ";
}
val=val+1;
//increasing no
for(int j=1;j<=i;j++){
cout<<val<<" ";
val++;
}
val--;
cout<<endl;
}
}
for(int i=1;i<=n;i++){
for(int j=n;j>=i;j--){//decreas
cout<<j<<" ";
}
for(int s=1;s<=2*i-1;s++){//spaces
cout<<" "<<" ";
}
for(int j=i;j<=n;j++){//increasing
cout<<j<<" ";
}
cout<<endl;
}
return 0;
}