#include using namespace std; string canConstruct(vector a) { // Return "Yes" or "No" denoting whether you can construct the required number. long long sum=0; for(auto u:a){ int num=u; while(num>0){ sum=sum+num%10; num/=10; } sum%=3; } sum%=3; if(sum==0) return "Yes"; else return "No"; } 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; } return 0; }