Shared code

/* 777 */
#include "bits/stdc++.h"
using namespace std;

#define int long long 

// const int MOD=1e9+7;
vector<int>vec;

void solve(){
	int n;cin>>n;
	while(n--){
		int a,b;cin>>a>>b;
		if((a>(b<<1))||(b>(a<<1))){
			cout<<"NO\n";
			continue;
		}
		cout<<(((a+b)%3)?"NO":"YES")<<endl;
	}
}

signed main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	solve();
}