#include <fstream>
using namespace std;
ifstream fin("dirichlet.in");
ofstream fout("dirichlet.out");
const int MOD=9999991;
long long pow(long long a, long long b)
{
    if (b==1)
        return a;
    if (b%2==0)
        return pow(a,b/2)*pow(a,b/2)%MOD;
    else
        return (a*pow(a,b/2)%MOD)*pow(a,b/2)%MOD;
}

int main()
{
    long long n,n2,a=1,b=1,i;
    fin>>n;
    n2=2*n;
    for(i=2;i<=n;i++)
        a=(a*i)%MOD;
    for (i=n+2;i<=n2;i++)
        b=b*i%MOD;
    fout<<(b*pow(a,MOD-2)%MOD)%MOD<<'\n';
    return 0;
}