#include<bits/stdc++.h>
using namespace std;
int a,i,n;
int main(){
	//freopen("1.in","r",stdin);
	//freopen("1.out","w",stdout);
	cin>>n;
	for(i=1;i<=n;i++){
		cin>>a;
		while(a!=0){
			n+=a%10;
			a/=10;
		}
		if(n%7==0){
			cout<<"Yes"<<endl;
		}else{
			cout<<"No"<<endl;
		}
		n=0;
	}
    return 0;
}