#include "iostream"
using namespace std;


int main() {

    long long num;

    cin >> num;

    long long power = 1;

    if (num == 2) {
        cout << 1 << endl;
        return 0;
    }

    for (int i = 1; i <= num-3; ++i) {
        power = (power * 2)%(1000000007);
    }

    long long result = ((num*power)%(1000000007));

    cout << result << endl;

    return 0;
}