#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("dirichlet.in");
ofstream fout("dirichlet.out");
#define MOD 9999991
#define MAX 1000010

int pow(int a, int p)
{
    int rez = 1;
    while(p)
    {
        if(p & 1)
            rez = (1ll * rez * a) % MOD;
        p >>= 1;
        a = (1ll * a * a) % MOD;
    }
    return rez;
}

int main()
{
    int n, t, i, rez = 1;
    fin >> n;
    t = 1;
    for(i = 1 ; i <= n ; i++)
        t = (1ll * t * i) % MOD;
    rez = (1ll * rez * pow(t, 2 * (MOD - 2))) % MOD;
    rez = (1ll * rez * pow(n + 1, MOD - 2)) % MOD;
    for(i = n + 1 ; i <= 2 * n ; i++)
        t = (1ll * t * i) % MOD;
    rez = (1ll * rez * t) % MOD;
    fout << rez << "\n";
}