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