using System;
using System.Linq;
using System.Collections.Generic;

public class Solution
{
    public static void Main()
    {
        var n = int.Parse(Console.ReadLine());
        long result = 1;

        for (int i = 2; i < n; i++)
        {
            result = (result * i * (i+1)/2)% 1000000007;
        }

        Console.WriteLine(result);
    }
}