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// Long Challenge
 
#pragma Gpref optimize("O3")
//#pragma Gpref optimize("Ofast")
//#pragma Gpref target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma Gpref optimize("unroll-loops")
#include <bits/stdc++.h>
#define int long long
#define IOS ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define FR(i,j,k) for(int i=j; i<k; i++)
#define TC int T; cin >> T; FR(t,0,T)
#define BFR(i,j,k) for(int i=j; i>=k; --i)
#define pb push_back
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "
#define go continue
#define F first
#define S second
using namespace std;
 
const int MOD = (int)1e9+7;
const int N = 1e5+5;
 
int32_t main(){
IOS;
 
TC{
	int a, b, c;
	cin >> a >> b >> c;
	int sum = a + 2*b + 3*c;
	cout << ((sum  % 9 == 0)?"YES":"NO" << '\n';
 
}
	return 0;
}
 
 

prog.cpp: In function ‘int32_t main()’:
prog.cpp:30:38: error: invalid operands of types ‘const char [3]’ and ‘char’ to binary ‘operator<<’
  cout << ((sum  % 9 == 0)?"YES":"NO" << '\n';
                                 ~~~~~^~~~~~~
prog.cpp:30:45: error: expected ‘)’ before ‘;’ token
  cout << ((sum  % 9 == 0)?"YES":"NO" << '\n';
          ~                                  ^
                                             )

Standard output is empty