#!/bin/python

import sys

def canConstruct(a):
    s = ""
    tot = 0
    for i in a:
        for c in str(i):
            tot += int(c)
            #print tot,c
    #print tot
    return "Yes" if tot % 3 == 0 else "No"
    # Return "Yes" or "No" denoting whether you can construct the required number.

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