#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;

void solve() {
    ull n, a, b;
    cin >> n >> a >> b;

    if (a != n / b) {
        cout << "NO" << "\n";
        return;
    }

    string n_str = to_string(n);
    ull k = n_str.length() / 2;

    string a_str = to_string(a);
    string b_str = to_string(b);

    if ((a_str.length() != k) || (b_str.length() != k)) {
        cout << "NO" << "\n";
        return;
    }
    
    if ((a % 10 != 0) && (b % 10 != 0)) {
        cout << "NO" << "\n";
        return;
    }

    vector<ll> freq(10);

    while (a != 0) {
        ++freq[a % 10];
        a /= 10;
    }

    while (b != 0) {
        ++freq[b % 10];
        b /= 10;
    }

    while (n != 0) {
        --freq[n % 10];
        n /= 10;
    }

    for (ll i : freq) {
        if (i != 0) {
            cout << "NO" << "\n";
            return;
        }
    }

    cout << "YES" << "\n";
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);

    int t;
    cin >> t;
    while (t--) {
        solve();
    }

    return 0;
}