import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        T t = new T();
        t.t(n);
    }
}
class T {
    public void t(int n) {
        if(n > 5) {
            t(n / 6);
        }
        System.out.print(n % 6);
    }
}