#!/bin/python3

import sys

def canConstruct(a):
    sum=0
    # Return "Yes" or "No" denoting whether you can construct the required number.
    for i in range(len(a)):
        while(a[i]!=0):
            d=int(a[i]%10)
            sum=sum+d
            a[i]=int(a[i]//10)
    if(sum%3==0):
        return 1
    else:
        return 0
    
    
    
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)
        if(result==1):
            print('Yes')
        else:
            print('No')