#!/bin/python3

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    totalDig = 0
    for l in range (len(a)):
        for m in range (len(a[l])):
            totalDig += int((a[l])[m])
    if (totalDig%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(str, input().strip().split(' ')))
        result = canConstruct(a)
        print(result)