#!/bin/python3

def sumDigits(num):
    num = str(num)
    val = 0
    for dig in num:
        val += int(dig)
    return val

def canConstruct(a):
    sumDig = sum([sumDigits(n) for n in a])
    boo = sumDig % 3 == 0
    return 'Yes'*boo + 'No'*(not boo)

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)