import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		long x = sc.nextInt();
		long y = sc.nextInt();
		long z = sc.nextInt();
		sc.close();

		long s = x + y + z;
		if (s % 3 == 0) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
}