#!/bin/python3

import sys

def digits(x):
    return sum(map(int, str(x)))

def canConstruct(a):
    return "Yes" if sum([digits(x) for x in a]) % 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)