#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using vi = vector<int>;
using vll = vector<ll>;

int main()
{
    ios::sync_with_stdio(false); cin.tie(nullptr);
    ll t, n, a, b;
    cin >> t;
    while (t--)
    {
        bool vamp = true;
        cin >> n >> a >> b;
        if (n != a * b) vamp = false;
        if (to_string(a).size() != to_string(b).size()) vamp = false;
        if (a % 10 == 0 && b % 10 == 0) vamp = false;
        string comb = to_string(a) + to_string(b);
        string n_str = to_string(n);

        std::map<int, int> count;
        for (const auto x: comb)
        {
            if (count.contains(x))
                count[x] ++;
            else    
                count[x] = 1;
        }

        for (const auto x: n_str)
        {
            if (count.contains(x))
                count[x] --;
            else    
                count[x] = -1;
        }
        for (auto & [key, val]: count)
        {
            if (val != 0)
            {
                vamp = false;
                break;
            }
        }
        if (vamp) cout << "YES" << endl;
        else cout << "NO" << endl;
    }
}