#include <stdio.h>
#include <Windows.h>
int main()
{
int line = 0; //上半部分行数
int i = 0;
int j = 0;
int n = 0;
scanf("%d", &line);
for (i = 0; i < line; i++)
{
for (n = 0; n < line - 1 - i; n++)
{
printf(" ");
}
for (j = 0; j < 2 * i+1; j++)
{
printf("*");
}
printf("\n");
}
for (i = 0; i < line - 1; i++)
{
for (n = 0; n < i + 1; n++)
{
printf(" ");
}
for (j = 0; j < 2 * (line - 1 - i) - 1; j++)
{
printf("*");
}
printf("\n");
}