using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

class Program
{
	static long LPow (long x, long n)
	{
		if (n == 0)
			return 1;
		return x * LPow(x, n - 1);
	}

	static void Main(string[] args)
	{
		long n = Int64.Parse( Console.ReadLine() );

		long aa = LPow(10, 18);

		long ans = 1;
		long r1, r2, n2;
		long m = LPow(10, 9) + 7;
		Math.DivRem(n, m, out n2);
		for (int i = 1; i < n2 + 1; i++)
		{
			Math.DivRem(ans, m, out r1);
			Math.DivRem(i, m, out r2);
			ans = r1 * r2;
		}
		long result;
		Math.DivRem(ans, m, out result);

		Console.WriteLine(result);
	}
}