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