#!/bin/python

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number
    num = []
    for i in a:
        str_num = str(i)
        num.extend(str_num)
    add_num = 0
    for x in num:
        add_num = add_num + int(x)
    if add_num % 3 == 0:
        return "Yes"
    else:
        return "No"
if __name__ == "__main__":
    t = int(raw_input().strip())
    for a0 in xrange(t):
        n = int(raw_input().strip())
        a = map(int, raw_input().strip().split(' '))
        result = canConstruct(a)
        print result