#!/bin/python

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    total = 0
    for num in a:
        for digit in str(num):
            total += int(digit)
            
    if total % 3 == 0:
        return "Yes"
    else:
        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