import java.util.*;
import java.lang.*;
public class Factorial{
        public static void main(String[] args){
                Scanner cin=new Scanner(System.in);
                int n=Integer.parseInt(cin.next());
                String k=cin.nextLine();
                int j=k.length()-1;
                int sum=1;
                for(int i=n;i>0;i-=j){
                        sum=sum*i;
                }
                System.out.println(sum);
        }
}