import java.util.*;

public class Main {
    static final int MOD = 1000007;
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		long n = sc.nextLong();
		long ans = ((((n / 2 + 1) % MOD) * (n - n / 2 + 1) % MOD) + MOD - 1) % MOD;
		System.out.println(ans);
   }
}