import java.util.*;
import java.math.*;;
public class Main{
  public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
    	BigInteger num = sc.nextBigInteger();
    	if (num.mod(new BigInteger("9")).compareTo(new BigInteger("0")) == 0)
          System.out.println("Yes");
    	else
          System.out.println("No");
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz