#!/bin/python

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    sum=0
    for i in xrange(len(a)):
        x=a[i]
        while(x>0):
            sum=sum+(x%10)
            x=x/10
    if(sum>0 and sum%3==0):
        return 'Yes'
    return 'No'     

if __name__ == "__main__":
    t = int(raw_input().strip())
    for a0 in xrange(t):
        n = int(raw_input().strip())
        a = map(int, raw_input().strip().split(' '))
        result = canConstruct(a)
        print result