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(){
  int x;
  char a[9999999];
  scanf("%d",&x);
  int i;
  for(i=0;x>=10;i++)	{
    a[i] = x%10;		
    x=x/10;
  }	
  a[i] = x;	
  x = 0;
  while(i){
    x = x+a[i];
    i--;	
  }
  x = x+a[0];	  
  if (x%9==0){
    printf ("Yes");
  }
  else 
    printf ("No");
  return 0;
}