#!/bin/python

import sys

def sum_digits(n):
    count = 0
    while(n>0):
        dig=n%10
        count = count + dig
        n = n//10
    return count

def canConstruct(a):
    sum = 0
    for n in a:
        sum = sum + sum_digits(n)
    if sum % 3 == 0:
        return "Yes"
    else:
        return "No"        
# Return "Yes" or "No" denoting whether you can construct the required number.

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