#include <iostream>
#include <string>

using namespace std;

int main() {
    const long long p = 1000000007;
    long long n;
    cin >> n;

    long long sum[2];
    sum[0] = 0;
    sum[1] = 1;

    for (long long i = 2; i < n; i++) {
        sum[i & 1] = (sum[i & 1] + (i * sum[(i - 1) & 1] % p)) % p;
    }

    if (n != 1) {
        cout << ((n * sum[(n - 1) & 1]) % p) << "\n";
    }
    else {
        cout << 1 << "\n";
    }

    int a;
    cin >> a;
}