#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main() {
	int i = 0;
	int ln = 0;
	scanf("%d", &ln);
	for (i = 0; i < ln; i++) {
		int temp = 0;
		for (temp = 0; temp < ln - i - 1; temp++) {
			printf(" ");
		}
		for (temp = 0; temp < 2 * i + 1; temp++) {
			printf("*");
		}
		printf("\n");
	}
	for (i = 0; i < ln - 1; i++) {
		int j = 0;
		for (j = 0; j <= i; j++) {
			printf(" ");
		}
		for (j = 0; j < 2 * (ln - i - 1) - 1; j++) {
			printf("*");
		}
		printf("\n");
	}
	return 0;
}