#!/bin/python

import sys

def canConstruct(a):
    # Return "Yes" or "No" denoting whether you can construct the required number.
    s=0;
    for i in range(len(a)):
        g=a[i];
        while(g>0):
            s+=(g%10);g/=10;
    if (s%3==0): return 'Yes';
    return 'No';

if __name__ == "__main__":
    t = int(raw_input().strip())
    for a0 in xrange(t):
        n = int(raw_input().strip())
        a = map(int, raw_input().strip().split(' '))
        result = canConstruct(a)
        print result