#!/bin/python3

import sys

def canConstruct(a):
    su=0
    for i in a:
        z=list(map(int,i))
        su=su+sum(z)
    if(su%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(str, input().strip().split(' ')))
        result = canConstruct(a)
        print(result)