import java.math.BigInteger;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String n = sc.next();
		sc.close();

		BigInteger N = new BigInteger(n);
		BigInteger nine = new BigInteger("9");
		if (N.remainder(nine).equals(BigInteger.ZERO)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} import java.math.BigInteger; BigInteger java.math import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String n = sc.next();
		sc.close();

		BigInteger N = new BigInteger(n);
		BigInteger nine = new BigInteger("9");
		if (N.remainder(nine).equals(BigInteger.ZERO)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String n = sc.next();
		sc.close();

		BigInteger N = new BigInteger(n);
		BigInteger nine = new BigInteger("9");
		if (N.remainder(nine).equals(BigInteger.ZERO)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} main {
		Scanner sc = new Scanner(System.in);
		String n = sc.next();
		sc.close();

		BigInteger N = new BigInteger(n);
		BigInteger nine = new BigInteger("9");
		if (N.remainder(nine).equals(BigInteger.ZERO)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String n = sc.next(); n sc.next() sc.next sc sc.close() sc.close sc BigInteger N = new BigInteger(n); N new BigInteger(n) BigInteger nine = new BigInteger("9"); nine new BigInteger("9") if (N.remainder(nine).equals(BigInteger.ZERO)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		} N.remainder(nine).equals(BigInteger.ZERO) N.remainder(nine).equals N.remainder(nine) N.remainder N nine BigInteger.ZERO BigInteger BigInteger.ZERO {
			System.out.println("Yes");
		} System.out.println("Yes") System.out.println System.out System System.out "Yes" {
			System.out.println("No");
		} System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String n = sc.next();
		sc.close();

		BigInteger N = new BigInteger(n);
		BigInteger nine = new BigInteger("9");
		if (N.remainder(nine).equals(BigInteger.ZERO)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String n = sc.next();
		sc.close();

		BigInteger N = new BigInteger(n);
		BigInteger nine = new BigInteger("9");
		if (N.remainder(nine).equals(BigInteger.ZERO)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} Main
import java.math.BigInteger;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String n = sc.next();
		sc.close();

		BigInteger N = new BigInteger(n);
		BigInteger nine = new BigInteger("9");
		if (N.remainder(nine).equals(BigInteger.ZERO)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
}
