#!/bin/python3

import sys

def canConstruct(a):
    sum = 0
    for i in range(len(a)):
        for c in range(len(a[i])):
            sum += int(a[i][c])
    if(sum % 3 == 0):
        return("Yes")
    return("No")

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)