import java.io.*; import java.util.*; import java.text.*; import java.math.*; import java.util.regex.*; public class Solution { static String canConstruct(int[] a) { String temp = ""; for (int aa : a) { temp += aa + ""; } int sum = 0; for (int i = 0; i < temp.length(); i++) { sum += Integer.valueOf(Character.toString(temp.charAt(i))); } if (sum % 3 == 0) { return "Yes"; } else { 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(); } }