#!/bin/python3

import sys

def canConstruct(a):
    sumchar = 0
    for n in a:
        for c in str(n):
            sumchar += int(c)
    
    return ("Yes", "No")[(sumchar % 3) > 0]

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)