using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.Globalization;
using System.Diagnostics;
using static System.Console;
using Pair = System.Collections.Generic.KeyValuePair<int, int>;

class Program
{
    static void Main()
    {
        //SetOut(new StreamWriter(OpenStandardOutput()) { AutoFlush = false });
        new Program().Solve();
        Out.Flush();
    }
    Scanner cin = new Scanner();
    Random rnd = new Random();
    Stopwatch sw = new Stopwatch();
    readonly int[] dd = { 0, 1, 0, -1, 0 };
    readonly int mod = 1000000007;
    readonly string alfa = "abcdefghijklmnopqrstuvwxyz";


    void Solve()
    {
        long d = cin.Nextlong;
        if (d >= mod)
        {
            WriteLine(0);
            return;
        }
        long result = 1;
        for (int i = 1; i < d; i++)
        {
            result = result * i % mod;
        }
        WriteLine(result);
    }

    long Factorial(long n)
    {
        if (n == 0) return 1;
        long d = Factorial(n / 2);
        d = d * d % mod;
        d = d * Combination(n, n / 2) % mod;
        if (n % 2 == 0) return d;
        else return d * (n - n / 2) % mod;
    }

    long Combination(long n, long r)
    {
        if (n < 0 || r < 0 || r > n) throw new ArgumentException("不正な引数です．");

        if (n - r < r) r = n - r;
        if (r == 0) return 1;
        if (r == 1) return n;

        var numerator = new long[r];
        var denominator = new long[r];

        for (int k = 0; k < r; k++)
        {
            numerator[k] = n - r + k + 1;
            denominator[k] = k + 1;
        }

        for (int p = 2; p <= r; p++)
        {
            long pivot = denominator[p - 1];
            if (pivot > 1)
            {
                long offset = (n - r) % p;
                for (int k = p - 1; k < r; k += p)
                {
                    numerator[k - offset] /= pivot;
                    denominator[k] /= pivot;
                }
            }
        }

        long result = 1;
        for (int k = 0; k < r; k++)
        {
            if (numerator[k] > 1) result =  result * numerator[k] % mod;
        }

        return result;
    }

}

class Scanner
{
    string[] s; int i;
    char[] cs = new char[] { ' ' };
    public Scanner() { s = new string[0]; i = 0; }
    public string[] Scan { get { return ReadLine().Split(); } }
    public int[] Scanint { get { return Array.ConvertAll(Scan, int.Parse); } }
    public long[] Scanlong { get { return Array.ConvertAll(Scan, long.Parse); } }
    public double[] Scandouble { get { return Array.ConvertAll(Scan, double.Parse); } }
    public string Next
    {
        get
        {
            if (i < s.Length) return s[i++];
            string st = ReadLine();
            while (st == "") st = ReadLine();
            s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);
            i = 0;
            return Next;
        }
    }
    public int Nextint { get { return int.Parse(Next); } }
    public long Nextlong { get { return long.Parse(Next); } }
    public double Nextdouble { get { return double.Parse(Next); } }
}