#!/bin/python3

import sys

def count(n):
    s = 0
    while n:
        s += n % 10
        n //= 10
    return s

def canConstruct(a):
    return "Yes" if (not sum(count(e) for e in a) % 3) 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)