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