#!/bin/python

import sys

def canConstruct(a):
    su = 0
    for e in a:
        while(e>0):
            su+=e%10
            e/=10
    #print su
    if su%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