import java.math.BigInteger;
import java.util.Scanner;

public class Proglute {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        BigInteger number = sc.nextBigInteger();
        BigInteger mod = BigInteger.valueOf(1000000007);
        BigInteger result = BigInteger.TWO.modPow(number.subtract(BigInteger.valueOf(3)), mod).multiply(number).mod(mod);

        System.out.println(result);
    }
}