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