#include <bits/stdc++.h> using namespace std; string canConstruct(vector <int> a) { // Return "Yes" or "No" denoting whether you can construct the required number. int x; long long sm=0; for(int i=0;i<a.size();i++) { x=a[i]; while(x) { sm+=x%10; x/=10; } } if(sm%3==0) return "Yes"; else return "No"; } int main() { int t; cin >> t; for(int a0 = 0; a0 < t; a0++){ int n; cin >> n; vector<int> a(n); for(int a_i = 0; a_i < n; a_i++){ cin >> a[a_i]; } string result = canConstruct(a); cout << result << endl; } return 0; }