include
using namespace std;
int main() {
int n;
cin>>n;
int val;
for(int i=1;i<=n-3;i++){
for(int s=1;s<=n-(2*i-1);s++){//spaces for top
cout<<" “<<” ";
}
val=i;
for(int j=1;j<=i;j++){//de4cresing no
cout<<val<<" ";
val--;
}
for(int s=1;s<=(2*i-3);s++){
cout<<" "<<" ";
}
val++;
if(i>1){
for(int j=1;j<=i;j++){
cout<<val<<" ";
val++;
}
}
cout<<endl;
}
for(int i=1;i<=n-4;i++){
for(int s=1;s<=i;s++ ){
cout<<" "<<" "<<" "<<" ";
}
val=4-i;
for(int j=1;j<=4-i;j++){
cout<<val<<" ";
val--;
}
val++;
if(i!=n-4){
for(int s=1;s<=(n-3)-i;s++){
cout<<" "<<" ";
}
for(int j=1;j<=4-i;j++){
cout<<val<<" ";
val++;
}
}
cout<<endl;
}
return 0;
}