#!/bin/python3

import sys

def canConstruct(a):
    su=0
    for i in range(len(a)):
        if a[i].isdigit():
            su+=int(a[i])
    if su%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(input())
        result = canConstruct(a)
        print(result)