#!/bin/python

import sys

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