import java.io.*;
import java.util.*;

public class Main{
    public static BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
    public static PrintWriter stdOut = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
    public static final long C2814 = 40116600;
    public static long d(int n) {
        if(n == 0 || n == 1) return 0;
        if(n == 2) return 1;
        return (n-1) * (d(n-1) + d(n-2));
    }
    public static void main(String[] args) throws IOException{
        stdOut.println(C2814 * d(14));
        stdOut.flush();
    }
}