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