import java.io.*; import java.util.*; import java.text.*; import java.math.*; import java.util.regex.*; public class Solution { static String canConstruct(int[] a) { // Return "Yes" or "No" denoting whether you can construct the required number. int sum = 0; for (int i = 0; i < a.length; i++) { while (a[i] > 0) { sum = sum + a[i] % 10; a[i] = a[i] / 10; } } if (sum % 3 == 0) return "Yes"; return "No"; } public static void main(String[] args) { Scanner in = new Scanner(System.in); int t = in.nextInt(); for(int a0 = 0; a0 < t; a0++){ int n = in.nextInt(); int[] a = new int[n]; for(int a_i = 0; a_i < n; a_i++){ a[a_i] = in.nextInt(); } String result = canConstruct(a); System.out.println(result); } in.close(); } }