#!/bin/python3

import sys

def canConstruct(a):
    mSet = []
    for i in range(len(a)):
        mList = list(map(int, list(str(a[i]))))
        for item in mList:
            mSet.append(item)
    #print(mSet)
    mSum = sum(mSet)
    if mSum% 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)