import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; class FastReader { BufferedReader br; StringTokenizer st; public FastReader() { br = new BufferedReader(new InputStreamReader(System.in)); } String next() { while (st == null || !st.hasMoreElements()) { try { st = new StringTokenizer(br.readLine()); } catch (IOException e) { e.printStackTrace(); } } return st.nextToken(); } int nextInt() { return Integer.parseInt(next()); } long nextLong() { return Long.parseLong(next()); } double nextDouble() { return Double.parseDouble(next()); } String nextLine() { String str = ""; try { str = br.readLine(); } catch (IOException e) { e.printStackTrace(); } return str; } } class Solution { public static void main(String[] args) { FastReader scanner = new FastReader(); int t = scanner.nextInt(); for(int i = 0; i < t; i++) { int n = scanner.nextInt(); long sum = 0; for(int j = 0 ;j < n; j++) { int a = scanner.nextInt(); sum += digitSum(a); } System.out.println((sum % 3 == 0) ? "Yes" : "No"); } } private static int digitSum(int a) { int sum = 0; while(a > 0) { sum += (a % 10); a /= 10; } return sum; } }