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