#include <cstdio>

using namespace std;

const int MOD = 9999991;

int fp(int a, int b){
  int aa = a, p;
  for(p = 1;b;b = b >> 1){
    if(b & 1)
      p = 1LL * p * aa % MOD;
    aa = 1LL * aa * aa % MOD;
  }
  return p;
}

int main()
{
    freopen("dirichlet.in", "r", stdin);
    freopen("dirichlet.out", "w", stdout);
    int n, i, p, x, y, p1, p2;
    scanf("%d", &n);
    p = 1;
    for(i = 1;i <= 2 * n;i++){
      p = 1LL * p * i % MOD;
      if(i == n){
        p1 = p;
      }
      if(i == n + 1)
        p2 = p;
    }
    x = fp(p1, MOD - 2);
    y = fp(p2, MOD - 2);
    printf("%d", (1LL * p * x % MOD * y % MOD) % MOD);
    return 0;
}