#!/bin/python3

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    sum = 0
    for i in a :
        while(i > 0) :
            sum+=i%10
            i = (i-i%10)/10
    if sum%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)