Problem:
Score : 200 points

Problem Statement

An integer N is a multiple of 9 if and only if the sum of the digits in the decimal representation of N is a multiple of 9.

Determine whether N is a multiple of 9.

Constraints

0 \leq N < 10^{200000}

N is an integer.

Input

Input is given from Standard Input in the following format:

N

Output

If N is a multiple of 9, print Yes; otherwise, print No.

Sample Input 1

123456789

Sample Output 1

Yes

The sum of these digits is 1+2+3+4+5+6+7+8+9=45, which is a multiple of 9, so 123456789 is a multiple of 9.

Sample Input 2

0

Sample Output 2

Yes

Sample Input 3

31415926535897932384626433832795028841971693993751058209749445923078164062862089986280

Sample Output 3

No

Solution in Java (OpenJDK 11.0.6) (judge verdict: Wrong Answer)

import java.io.*;

public class Main {

	public static void main(String[] args) {
		int sum = 0;
		
		try(FileReader fw = new FileReader("data.txt");) {
			int input = fw.read();
			while(input != -1) {
				sum += input;
			}
		} catch (Exception e) {
			;
		}
		if(sum%9 == 0) {
			System.out.print("Yes");
		} else {
			System.out.print("No");
		}
	
	}

}