#!/bin/python3

import sys

def canConstruct(a):
    c = 0
    
    for i in range(len(a)):
        p = int(a[i])
        while p>0:
            c+=p%10
            p//=10
    #print(c)        
    if not c%3==0:
        
        return "No"
    else:
        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)