#!/bin/python3

import sys

def canConstruct(a):
    total = 0
    for i in a:
        total += int(i)
    if total%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()
        [a.extend(list(x)) for x in input().split()]
        result = canConstruct(a)
        print(result)