#include<stdio.h>
int main()
{
    int n;
    scanf("%d", &n);
    if (n % 2 == 0 || n < 1 || n > 10)
    {
        printf("Invalid Input\n");
        return 0;
    }
    for (int i = n; i >= 1; i -= 2)
    {
        int spaces = (n - i) / 2;
        for (int s = 0; s < spaces; s++)vprintf(" ");
        for (int j = 0; j < i; j++) printf("*");
        printf("\n");
    }
    return 0;
    }
}