#!/bin/python

import sys

def canConstruct(a):
    # Return "Yes" or "No" denotig whether you can construct the required number.
    arr = list()
    for n in a:
        for s in str(n):
            arr.append(int(s))
    return "No" if sum(a) % 3 else "Yes"

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