#include <bits/stdc++.h>
using namespace std;

const int64_t MOD = 1e9+7;

int64_t extgcd(int64_t a, int64_t b, int64_t& x, int64_t& y){
    int64_t d = a;
    if(b != 0){
        d = extgcd(b, a%b, y, x);
        y -= (a/b) * x;
    }else{
        x = 1; y = 0;
    }
    return d;
}

int64_t inv_mod(int64_t a){
    int64_t x, y;
    extgcd(a, MOD, x, y);
    return (MOD + x%MOD) % MOD;
}

int main(){
    int K;
    cin >> K;
    if(K%2){
        cout << 0 << endl;
        return 0;
    }

    int64_t ans = 1;
    for(int i=1; i<=K/2; i++){
        ans = ans * i % MOD;
    }
    ans = inv_mod(ans);
    for(int i=K/2+1; i<=K; i++){
        ans = ans * i % MOD;
    }
    cout << ans << endl;
    return 0;
}