#include using namespace std; string canConstruct(vector a, int n) { int sum=0; while(n--) {sum=sum+a.back();} if(sum%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 a(n); for(int a_i = 0; a_i < n; a_i++){ cin >> a[a_i]; } string result = canConstruct(a,n); cout << result << endl; } return 0; }