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

public class Main {
    public static void main(String[] args) {
        Scanner sc= new Scanner(System.in);
       String str=sc.nextLine();
        BigInteger bg =new BigInteger(str);
        BigInteger nine=new BigInteger("9");
        BigInteger reminder=bg.remainder(nine);
        BigInteger y=new BigInteger("0");
        if(reminder.compareTo(y)==0){
            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 str=sc.nextLine();
        BigInteger bg =new BigInteger(str);
        BigInteger nine=new BigInteger("9");
        BigInteger reminder=bg.remainder(nine);
        BigInteger y=new BigInteger("0");
        if(reminder.compareTo(y)==0){
            System.out.println("Yes");
        }
        else {
            System.out.println("No");
        }
    }
} Main public static void main(String[] args) {
        Scanner sc= new Scanner(System.in);
       String str=sc.nextLine();
        BigInteger bg =new BigInteger(str);
        BigInteger nine=new BigInteger("9");
        BigInteger reminder=bg.remainder(nine);
        BigInteger y=new BigInteger("0");
        if(reminder.compareTo(y)==0){
            System.out.println("Yes");
        }
        else {
            System.out.println("No");
        }
    } main {
        Scanner sc= new Scanner(System.in);
       String str=sc.nextLine();
        BigInteger bg =new BigInteger(str);
        BigInteger nine=new BigInteger("9");
        BigInteger reminder=bg.remainder(nine);
        BigInteger y=new BigInteger("0");
        if(reminder.compareTo(y)==0){
            System.out.println("Yes");
        }
        else {
            System.out.println("No");
        }
    } Scanner sc= new Scanner(System.in); sc new Scanner(System.in) String str=sc.nextLine(); str sc.nextLine() sc.nextLine sc BigInteger bg =new BigInteger(str); bg new BigInteger(str) BigInteger nine=new BigInteger("9"); nine new BigInteger("9") BigInteger reminder=bg.remainder(nine); reminder bg.remainder(nine) bg.remainder bg nine BigInteger y=new BigInteger("0"); y new BigInteger("0") if(reminder.compareTo(y)==0){
            System.out.println("Yes");
        }
        else {
            System.out.println("No");
        } reminder.compareTo(y)==0 reminder.compareTo(y) reminder.compareTo reminder y 0 {
            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 str=sc.nextLine();
        BigInteger bg =new BigInteger(str);
        BigInteger nine=new BigInteger("9");
        BigInteger reminder=bg.remainder(nine);
        BigInteger y=new BigInteger("0");
        if(reminder.compareTo(y)==0){
            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 str=sc.nextLine();
        BigInteger bg =new BigInteger(str);
        BigInteger nine=new BigInteger("9");
        BigInteger reminder=bg.remainder(nine);
        BigInteger y=new BigInteger("0");
        if(reminder.compareTo(y)==0){
            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 str=sc.nextLine();
        BigInteger bg =new BigInteger(str);
        BigInteger nine=new BigInteger("9");
        BigInteger reminder=bg.remainder(nine);
        BigInteger y=new BigInteger("0");
        if(reminder.compareTo(y)==0){
            System.out.println("Yes");
        }
        else {
            System.out.println("No");
        }
    }
}
