def canConstruct(a):
    s = ""
    for i in a:
        s += str(i)
    total = 0
    for i in s:
        total += int(i)

    return "Yes" if total % 3 == 0 else "No"


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)