#!/bin/python

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    count=0
    for b in a:
        if b!=" ":
            count+=int(b)
    if count%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 = raw_input().strip()
        result = canConstruct(a)
        print result