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