#!/bin/python

import sys
def sum_digits(n):
    s = 0
    while n:
        s += n % 10
        n //= 10
    return s

def canConstruct(a,n):
    sum = 0
    for i in range(n):
        sum = sum + sum_digits(a[i])
    if sum % 3 == 0:
        return "Yes"
    else:
        return "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,n)
        print result