#!/bin/python3

import sys

def canConstruct(lista):
    soma_valores = 0
    for num in lista:
        for digito in num:
            soma_valores += int(digito)

    if soma_valores%3 == 0:
        return 'Yes'

    else:
       return 'No'

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