import java.io.*;
import java.util.Scanner;


public class Main_yukicoder793_1 {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		final int MOD = 1_000_000_007;

		long n = sc.nextLong();

		long ans = (4 * modPow(10, n, MOD) - 1) % MOD * modPow(3, MOD - 2, MOD) % MOD;
		
		pr.println(ans);
	}

	static long modPow(long a, long n, int MOD) {
		long loop = n;
		long ret = 1;
		long x = a % MOD;
		while (loop > 0) {
			if (loop % 2 == 1) {
				ret = ret * x % MOD;
			}
			x = x * x % MOD;
			loop /= 2;
		}

		return ret;
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);
			
		solve();
			
		pr.close();
		sc.close();
	}

	static class Printer extends PrintWriter {
		Printer(OutputStream out) {
			super(out);
		}
	}
}