#!/bin/python3

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    f = [0]*10
    ans = 'No'
    while True:
        f = [0]*10
        for i in range(len(a)):
            for l in list(a[i]):
                f[int(l)] += 1
        sum = 0
        for i in range(10):
            sum += f[i] * i
        if sum > 9:
            a = [str(sum)]
            continue
        else:
            #print(sum)
            if sum%3 == 0: ans = 'Yes'
            break
    return ans
            

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