import java.util.Scanner;

public class No72 {
	public static final long mod = 1000007;
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long N = sc.nextLong();
		long x;
		if(N % 2 == 0) {
			x = N/2;
		}else {
			x =(N-1)/2;
		}
		long a = (x+1) % mod;
		long b = (N-x+1) % mod;
		if((a*b) % mod == 0) {
			System.out.println(mod -1);
		}else {
			System.out.println((a*b) % mod - 1);
		}
	}
}