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 Go (1.14.1) (judge verdict: Wrong Answer)

// Multiple of 9

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

func mulOf9(s string) bool {
	sum := 0
	for _, c := range s {
		sum += (int(c - '0'))
		if 8 < sum {
			sum %= 9
		}
	}
	return sum == 0
}

func nextInt(sc *bufio.Scanner) (int, error) {
	sc.Scan()
	t := sc.Text()
	return strconv.Atoi(t)
}

func nextString(sc *bufio.Scanner) string {
	sc.Scan()
	return sc.Text()
}

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)

	s := nextString(sc)

	r := mulOf9(s)
	if r {
		fmt.Println(`Yes`)
	} else {
		fmt.Println(`No`)
	}
}