#!/bin/python

import sys

def sod(a):
    s=0
    while(a>0):
        s+=a%10
        a=a//10
    return s    

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    s=0
    for i in xrange(len(a)):
        s+=sod(a[i])
    if s%3==0:
        return "Yes"
    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