#!/bin/python3

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    d = ''.join(map(str, a))
    k = [int(x) for x in d]
    if sum(k)%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)