#include <iostream>
using namespace std;
int main() {
int n;
cin >> n ;
int ** x = new int * [n];
for (int i = 0; i < n; i++) x[i] = new int[n];
int m=(n-1)/2;
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
x[i][j]=1;
}
for(int j=i+1;j<n-i-1;j++){
x[i][j]=0;
}
}
for( int i=0;i<m;i++){
for (int j=0;j<n;j++){
if(x[i][j]==0) {
x[n-i-1][j]=0;
}
}
}
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
if(x[i][j]!=0){
cout<<"*";
} else cout<<" ";
}
cout<<endl;
}
return 0;
}
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