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