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# include <iostream>

using namespace std;

int main()
{
	int n;
	cin >> n;
	
	// 前 n – 1 行 类似倒立的空心等腰三角形
//	for (int x = 1; x <= n-1; x++)
//    {

//		for (int j = 1; j <=x+2;j++)
//		cout << " ";
		
//		cout << "*";
		
//		for (int j = 1; j <=2*(n-x)-1; j++)
//		cout << " ";	
		
//		cout << "*" << endl;  
      
//    }
    	for (int i = n; i >= 2; i--)
	{
		for (int j = 1; j <= 2 * n - i - 1; j++)
			cout << " ";
		cout << "*";
		for (int j = 1; j <= 2 * i - 3; j++)
			cout << " ";	
		cout << "*" << endl;
	}