#include using namespace std; int main(){ int T; cin >> T; while(T--){ int N; cin >> N; vector A(N); long long sum = 0; for(int i = 0; i < N; i++) { cin >> A[i]; sum += A[i]; } bool f = true; if(sum % 3 != 0) cout << "No" << endl; else{ for(int i = 0; i < N; i++){ if(sum / 3 < A[i]) f = false; } if(!f) cout << "No" << endl; else cout << "Yes" << endl; } } }