#!/bin/python3

import sys

def get_digits_sum(i):
    ans = 0
    s = str(i)
    for i in s:
        ans += int(i)
    return ans

def canConstruct(a):
    ans = 0
    for i in a:
        s = get_digits_sum(i)
        ans += s
    return "Yes" if ans % 3 == 0 else "No"

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)