#include<bits/stdc++.h>
using namespace std;
int n;
int a;
long long sum;
int main()
{
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a;
        while(a>0)
        {
            sum+=a%10;
            a/=10;
        }
        if(sum%7==0)
        {
            cout<<"Yes"<<endl;
        }
        else
        {
            cout<<"No"<<endl;
        }
    }
    return 0;
}