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