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 C# (.NET Core 3.1.201) (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.Linq;
using static Scanner;

class Program
{
    static void Main() => new Program().Solve();

    public void Solve()
    {
        string n = Read();
        Console.WriteLine(n.Sum(c => c - '0') % 9 == 0 ? "Yes" : "No");
    }
}

static class Scanner
{
    static Queue<string> que = new Queue<string>();
    public static string Read() { if (!que.Any()) foreach (var s in Console.ReadLine().Split()) que.Enqueue(s); return que.Dequeue(); }
    public static int ReadInt() => int.Parse(Read());
    public static long ReadLong() => long.Parse(Read());
    public static double ReadDouble() => double.Parse(Read());
    public static decimal ReadDecimal() => decimal.Parse(Read());
    public static IEnumerable<string> Read(long n) { for (long i = 0; i < n; i++) yield return Read(); }
    public static IEnumerable<int> ReadInt(long n) => Read(n).Select(int.Parse);
    public static IEnumerable<long> ReadLong(long n) => Read(n).Select(long.Parse);
    public static IEnumerable<double> ReadDouble(long n) => Read(n).Select(double.Parse);
    public static IEnumerable<decimal> ReadDecimal(long n) => Read(n).Select(decimal.Parse);
}