#include <iostream>
using namespace std;
int main() {
int n;
cin>>n;
for (int i=0; i<(n/2)+1; i++){
for (int k=(n/2)-i; k>0; k--){
cout<<" ";
}
for (int j=0; j<=i; j++){
cout<<'*'<<" ";
}
for (int x=0; x<i; x++){
cout<<'*'<<" ";
}
cout<<endl;
}
for (int i=0; i<(n/2)+1; i++){
for (int k=0; k<(n/2)-i; k++){
cout<<" ";
}
for (int j=i; j>0; j--){
cout<<'*'<<" ";
}
// for (int x=0; x<i; x++){
// cout<<'*'<<" ";
// }
cout<<endl;
}
return 0;
}
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