#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
#define all(x) begin(x), end(x)

signed main() {
    ios_base::sync_with_stdio();
    cout.tie();
    cin.tie();

    int t;
    cin >> t;

    while(t--) {
        ll n, a, b;
        cin >> n >> a >> b;

        vector<ll> ka, kb, kn;

        ll aa = a, bb = b, nn = n;

        while(aa) {
            ka.pb(aa % 10);
            aa /= 10;
        }

        while(bb) {
            kb.pb(bb % 10);
            bb /= 10;
        }

        while(nn) {
            kn.pb(nn % 10);
            nn /= 10;
        }

        reverse(all(ka));
        reverse(all(kb));
        reverse(all(kn));

        //for(int i: ka) { cout << i << " "; } cout << "\n";
        //for(int i: kb) { cout << i << " "; } cout << "\n";
        //for(int i: kn) { cout << i << " "; } cout << "\n";

        vector<ll> v = ka;

        for(ll i: kb) {
            v.pb(i);
        }

        sort(all(v));
        sort(all(kn));

        if(n == a * b && ka.size() == kb.size() && (a % 10 != 0 || b%10!=0) && v == kn) {
            cout << "YES\n";
        }
        else {
            cout << "NO\n";
        }
    }

    return 0;
}