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