#!/bin/python3

import sys

def canConstruct(a):
    s=0
    for i in a:
        while i>0:
            s+=i%10
            i=i//10
    if(s%3):
        return 'No'
    return 'Yes'
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)