import java.util.Scanner;

public class Main72 {
	public static void main(String[] args) {
		Main72 p = new Main72();
	}

	public Main72() {
		Scanner sc = new Scanner(System.in);
		
		long n = sc.nextLong();
		solve(n);
	}

	private final long MOD = 1000007;
	public void solve(long n) {
		long res = ((n/2)%MOD) * ((n-n/2)%MOD+1) + (n-n/2)%MOD;
		System.out.println(res%MOD);
		
	}

}