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