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 - n / 2 + 1) % MOD * ((n / 2 + 1) % MOD) ) % MOD - 1 + MOD) % MOD;
        System.out.println(ans);
    }
}