#!/bin/python

import sys

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