#!/bin/python3

import sys

def get_sum(num):
    ans = 0
    while num > 0:
        ans += int(num % 10)
        num = int(num / 10)
    return int(ans)

def canConstruct(a):
    summer = 0
    for ele in a:
        summer += get_sum(ele)
    if summer % 3 == 0:
        return "Yes"
    else:
        return "No"
      
    # Return "Yes" or "No" denoting whether you can construct the required number.

if __name__ == "__main__":
    t = int(input().strip())
    for a0 in range(t):
        n = int(input().strip())
        a = list(map(int, input().strip().split(' ')))
        result = canConstruct(a)
        print(result)