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