#include<iostream>
using namespace std;
int main(){
int n;
cin >> n;
int cenx=n/2;
int ceny=n/2;
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
if(abs(i-cenx)+abs(j-ceny)<=n/2){ //曼哈顿距离法
cout<<"*";
}else{
cout<<" ";
}
}
cout<<endl;
}
return 0;
}