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 (GCC 9.2.1) (judge verdict: Wrong Answer)

#include<stdio.h>
int main(void)
{
  char n;
  unsigned int N;
  unsigned long int sum = 0;
  //input
  for(N=0;N<200000;N++)
  {
  	scanf("%c",&n);
    //printf("%d",(int)n-'0');
  	sum = sum + (n - '0');
    n = '0';
  }
  //output
  if(sum%9==0)
  {
    printf("Yes");
  }else{
    printf("No");
  }
  return 0;
}