#include <stdio.h>

main()
{
	int n, m, i, j;

	scanf("%d", &n);
	m = (n+1)/2;
	for (i = 1; i <= m; i++) {
		for (j = 0; j < (n-2*i+1)/2; j++)
			putchar(' ');
		for (j = 0; j < 2*i-1; j++)
			putchar('*');
		putchar('\n');
	}
	for (i = 1; i < m; i++) {
		for (j = 0; j < i; j++)
			putchar(' ');
		for (j = 0; j < n-2*i; j++)
			putchar('*');
		putchar('\n');
	}
	return 0;
}