//=================================
// Created on: 2018/08/24 21:45:35
//=================================
#include <bits/stdc++.h>
#define show(x) std::cerr << #x << " = " << x << std::endl
using ll = long long;
constexpr ll MOD = 1000000007LL;
int main()
{
    std::size_t N;
    std::cin >> N;
    ll ans = 1;
    for (std::size_t i = 1; i < 2 * N; i += 2) { (ans *= (i * (i + 1) / 2) % MOD) %= MOD, (ans *= (i + 1) / 2) %= MOD; }
    std::cout << ans << std::endl;
    return 0;
}