#include<stdio.h>
void main()
{
	int n;
	scanf("%d",&n);
	int a,b;
	for(a=1;a<=n/2+1;a++){
		
		for(b=1;b<=a;b++){
			printf("*");
		}
	
		for(b=1;b<=2*(n/2-a)+2;b++){
			printf(" ");
		}
		for(b=1;b<=a;b++){
			printf("*");
		}
		printf("\n");
	}
	for(a=1;a<=n/2;a++){
		for(b=1;b<=n/2-a+1;b++){
			printf("*");
		}
		for(b=1;b<=2*a;b++){
			printf(" ");
		}
		for(b=1;b<=n/2-a+1;b++){
			printf("*");
		}
		printf("\n");
	}
	
}
/**************************************************************
	Problem: 1247
	User: admin
	Language: C
	Result: Accepted
	Time:9 ms
	Memory:1144 kb
****************************************************************/