func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     vector<string> res;     for (int i = 0; i < t; ++i) {       long long int a, b;       cin >> a >> b;       if (a > b) swap(a, b);       if ((a + b) % 3 == 0 && 2 * a >= b)         res.push_back( YES );       else         res.push_back( NO );     }     for (int i = 0; i < t; ++i) {       cout << res[i] << endl;     }   }   