import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		sc.close();

		int[] a = {1, 12, 65};
		if (n < 3) {
			System.out.println(a[n]);
		} else {
			int mod = 1000000007;
			long x = 6L * n + 1;
			long x1 = x / 2;
			long x2 = x1 + 1;
			x1 %= mod;
			x2 %= mod;
			long v1 = x1 * x2 * 2 % mod;

			long r1 = n / 2;
			long r2 = r1 * (r1 + 1);
			if (n % 2 == 0) {
				r2 -= r1;
				throw new Exception();
			}
			r2 *= 4;
			r2 %= mod;

			long ans = v1 - r2 + mod;
			ans %= mod;
			System.out.println(ans);
		}
	}
}