#include<bits/stdc++.h>
using namespace std;
int n;
int main(){
	cin>>n;
for(int i=1;i<=(n+1)/2;i++){
	for(int j=1;j<=i-1;j++)	cout<<" ";
	for(int j=1;j<=2*n-2*i-3;j++)	cout<<"*";
	cout<<endl;
}
for(int i=1;i<=n/2;i++){
	for(int j=1;j<=n/2-i;j++)	cout<<" ";
	for(int j=1;j<=2*i+1;j++)	cout<<"*";
	cout<<endl;
}


	return 0;
}

/**************************************************************
	Problem: 1073
	User: linweilun
	Language: C++
	Result: Wrong Answer
****************************************************************/