#include using namespace std; string canConstruct(vector a) { vector:: iterator i; long long sum= 0; for( i=a.begin(); i!=a.end(); i++) sum=sum+(*i); if(sum%3==0) return "Yes"; return "No"; // Return "Yes" or "No" denoting whether you can construct the required number. } int main() { int t; cin >> t; for(int a0 = 0; a0 < t; a0++){ int n; cin >> n; vector a(n); for(int a_i = 0; a_i < n; a_i++){ cin >> a[a_i]; } string result = canConstruct(a); cout << result << endl; a.erase(a.begin(), a.end()); } return 0; }