#!/bin/python

import sys

def canConstruct(a):
    s = 0
    for x in a:
        for y in str(x):
            s += int(y)
    if s%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