#!/bin/python3

import sys

def canConstruct(a):
    a = [str(i) for i in a]
    digit = [int(i) for i in ''.join(a)]
    return'Yes' if sum(digit) % 3 == 0 else '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)