include

using namespace std; int main(){

int n;
cin>>n;
cout<<endl;
for(int i=1;i<=n;i++){
	for(int j=1;j<=i;j++){
		cout<<"*"<<" ";
	}
	cout<<endl;
}
for(int i=n;i>1;i--){
	for(int j=1;j<i;j++){
		cout<<"*"<<" ";
	}
	cout<<endl;
}
return 0;

}