#!/bin/python3

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    s=0
    for num in a:
        k=str(num)
        for i in k:
            s=s+int(i)
    p=str(s)
    l=0
    for j in p:
        l=l+int(j)
    if(l%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(map(int, input().strip().split(' ')))
        result = canConstruct(a)
        print(result)