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++)
        {
            var t = i * 2 - 1;
            // sum(t) = t*(t+1)/2

            result = (result * t) % 1000000007;
            result = (result * (t + 1) / 2) % 1000000007;
        }

        Console.WriteLine(result);
    }
}