import java.io.*;
import java.util.*;
import java.math.*;

class Main {
	public static void main (String[] args) throws IOException {
            BufferedReader br = 
                    new BufferedReader(new InputStreamReader(System.in));
            
            BigInteger n = new BigInteger(br.readLine());
            BigInteger zero = BigInteger.ZERO;
            BigInteger one = BigInteger.ONE;
            BigInteger two = BigInteger.valueOf(2);
            BigInteger mod = BigInteger.valueOf(1000007);
            
            if (n.remainder(two).compareTo(zero) == 0) {
                jout(n.divide(two).add(one).pow(2).subtract(one).mod(mod) + "\n");
            } else {
                jout(n.add(one).divide(two).add(one).multiply(n.subtract(one).divide(two).add(one)).subtract(one).mod(mod) + "\n");
            }
	}
        
       	public static void jout (Object o) {
            System.out.print(o);
	}
}