#!/bin/python

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    b=[]
    for i in range(len(a)):
        b.append(sum([int(x) for x in list(str(a[i]))]))
    if sum([int(y) for y in b])%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