#include <bits/stdc++.h>

using namespace std;

using ll = long long;
#define int long long
#define endl "\n"
void solve(){
    int n,a,b;
    cin>>n>>a>>b;
    if(n!=a*b || (a%10==0 && b%10==0)){
        cout<<"NO"<<endl;
        return;
    }
    string s1,s2,s3;
    s1=to_string(n);
    s2=to_string(a);
    s3=to_string(b);
    if(s1.size()%2){
        cout<<"NO"<<endl;
        return;
    }
    int k1=s1.size()/2;
    if( s2.size()!=k1 || s3.size()!=k1 || s1.size()!=s2.size()+s3.size()){
        cout<<"NO"<<endl;
        return;
    }
    string s4=s3+s2;
    sort(s1.begin(),s1.end());
    sort(s4.begin(),s4.end());
    if(s1==s4){
        cout<<"YES"<<endl;
        return;
    }
    cout<<"NO"<<endl;
}

int32_t main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    int t=1;
    cin>>t;
    for(int _=1;_<=t;_++){
        solve();
    }
}