#include <stdio.h>
void main ()
{
	int n;
	scanf("%d",&n);
	int i;
	for ( i = 1; i<=n; i++ )
	{
		if(i<=n-1)
		{
			int k;
			for(k=1; k<=n-i; k++)
			{
				printf(" ");
			}
			printf("*");
			int j;
			for(j=1; j<=2*i-3; j++)
			{
				printf(" ");
			}
					if(	i-1!=0	)
			{
				printf("*");
			}
				printf("\n");
			
		}
		if(i==n)
			{
				int x;
				for( x=1; x<=2*n-1; x++ )
				{
					printf("*");
				}
			}
	}
	
	
	
	
	
	


}
/**************************************************************
	Problem: 1225
	User: admin
	Language: C
	Result: Accepted
	Time:5 ms
	Memory:1144 kb
****************************************************************/