#!/bin/python3

import sys

def canConstruct(a):
    return 'Yes' if (a % 3 == 0) else 'No'
    # Return "Yes" or "No" denoting whether you can construct the required number.

if __name__ == "__main__":
    t = int(input().strip())
    for a0 in range(t):
        n = int(input().strip())
        a = sum(sum(int(x) for x in each) for each in input ().strip().split (' '))
        result = canConstruct(a)
        print(result)