#!/bin/bash
cat <<'EOF' > a.cpp
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
typedef long long ll;
constexpr int mod = 1e9+7;
void *fact_thread(void *args) {
    int l = ((int *)args)[0];
    int r = ((int *)args)[1];
    ll y = 1;
    ll i = l;
    for (; i & 0x7 and i < r; ++ i) {
        y = y * i % mod;
    }
    {
        ll x[8];
        for (int j = 0; j < 8; ++ j) {
            x[j] = 1;
        }
        for (; i+7 < r; i += 8) {
            x[0] = x[0] *  i    % mod;
            x[1] = x[1] * (i+1) % mod;
            x[2] = x[2] * (i+2) % mod;
            x[3] = x[3] * (i+3) % mod;
            x[4] = x[4] * (i+4) % mod;
            x[5] = x[5] * (i+5) % mod;
            x[6] = x[6] * (i+6) % mod;
            x[7] = x[7] * (i+7) % mod;
        }
        for (int j = 0; j < 8; ++ j) {
            y = y * x[j] % mod;
        }
    }
    for (; i < r; ++ i) {
        y = y * i % mod;
    }
    ll *p = (ll *)malloc(sizeof(ll));
    *p = y;
    return (void *)p;
}
int fact(int n) {
    int args[2][2] = {
        { 1, (n+1)/2 },
        { (n+1)/2, n+1 },
    };
    pthread_t th[2];
    for (int i = 0; i < 2; ++ i) {
        pthread_create(&th[i], NULL, fact_thread, (void *)&args[i]);
    }
    int z = 1;
    for (int i = 0; i < 2; ++ i) {
        ll *ret;
        pthread_join(th[i], (void **)&ret);
        z = z * (*ret) % mod;
        free(ret);
    }
    return z;
}
int main(void) {
    ll n; scanf("%lld",&n);
    printf("%d\n", n == 0 ? 1 : n < mod ? fact(n) : 0);
    return 0;
}
EOF
g++ -std=c++14 -Ofast -march=native -mtune=native a.cpp -lpthread
exec ./a.out