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