#include <iostream> #include <vector> #include <algorithm> #include <string> #include <ctype.h> #include <deque> #include <cstring> #include <set> #include <bitset> #include <map> #include <chrono> #include <random> #include <unordered_map> #include <stdio.h> using namespace std; typedef long long ll; typedef long double ld; typedef std::vector<int> vi; typedef std::vector<bool> vb; typedef std::vector<string> vs; typedef std::vector<double> vd; typedef std::vector<long long> vll; typedef std::vector<std::vector<int> > vvi; typedef vector<vll> vvll; typedef std::vector<std::pair<int, int> > vpi; typedef vector<vpi> vvpi; typedef std::pair<int, int> pi; typedef std::pair<ll, ll> pll; typedef std::vector<pll> vpll; const long long mod = 1000000007; const unsigned gen_seed = std::chrono::system_clock::now().time_since_epoch().count(); std::mt19937_64 gen(gen_seed); #define all(c) (c).begin(),(c).end() #define forn(i, a, b) for(int i = a; i < b; i++) #define read(x) scanf("%d", &x) #define readv(x, n) vi x(n); forn(i,0,n) scanf("%d", &x[i]) #define pb push_back #define mp make_pair int main() { int n; int t; scanf("%d", &t); forn(af,0,t) { scanf("%d", &n); int ans = 0; forn(i,0,n) { int x; scanf("%d", &x); ans+=x%3; } if(ans%3==0) printf("Yes\n"); else printf("No\n"); } }