import java.util.Scanner;
public class Main {
	public static void main(String[] args){
		Main main = new Main();
		main.solveC();
	}

	private void solveC() {
		Scanner sc = new Scanner(System.in);
		long ans = 1L;
		for (long i = sc.nextLong(); i > 0; i--) {
			ans = (((ans * i) % 1000000007L) * (2 * i - 1)) % 1000000007L;
		}
		System.out.println(ans);
	}
}