using System;

internal static class Program
{
    private static readonly int _mod = 1000007;

    private static long Calculate(long first, long second)
    {
        return ((second + 1) % _mod) * (first % _mod) + second % _mod;
    }

    public static void Main(string[] args)
    {
        var n = int.Parse(Console.ReadLine());
        if (n%2 == 1)
        {
            var first = Calculate(n / 2 + 1, n / 2) % _mod;
            var second = Calculate(n / 2, n / 2 + 1) % _mod;
            Console.WriteLine(Math.Max(first, second));
        }
        else
        {
            Console.WriteLine(Calculate(n/2,n/2)%_mod);
        }
    }
}