#!/bin/python

import sys

def canConstruct(a):
    ans = 0
    for i in a:
        x = i
        while(x!=0):
            ans += x%10
            x/=10
    if(ans%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