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