#!/bin/python3

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    s = sum(a)
    res = 0
    while s!=0:
        res += s%10
        s=s//10
    if res%3==0:
        return 'Yes'
    else:
        return 'No'

if __name__ == "__main__":
    t = int(input().strip())
    for a0 in range(t):
        n = int(input().strip())
        a = list(map(int, input().strip().split(' ')))
        result = canConstruct(a)
        print(result)