#!/bin/python3

import sys

def canConstruct(a):
    t = 0
    for i in a:
        t += sum([int(k) for k in str(i)])
    if (t%3):
        return "No"
    else:
        return "Yes"

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)