#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using pii = pair<int,int>;
using vll = vector<ll>;
using str = string;
using vstr = vector<string>;

#define PB push_back
#define ALL(x) (x).begin() (x).end()
#define FOR(i,s,f) for(int (i) = (s); i < (f); i++)

long long dlzka_cisla(long long cislo) {
    long long des = 1;
    long long len = 1;
    while (cislo / des != 0) {
        des *= 10;
        ++len;
    }
    len -= 1;
    return len;
}

void vyrob_pocty(map<int, long long> &pocty, long long cislo) {
    while (cislo > 0) {
        pocty[cislo % 10]++;
        cislo /= 10;
    }
} 

void test_case() {
    long long n, a, b;
    cin >> n >> a >> b;

    if (n == 0 || (a % 10 == 0 && b % 10 == 0) || a * b != n) {
        cout << "NO" << '\n';
        return;
    }

    long long len = dlzka_cisla(n);

    if (len % 2 != 0) {
        cout << "NO" << '\n';
        return;
    }

    long long len_a = dlzka_cisla(a);
    long long len_b = dlzka_cisla(b);

    if (len_a != len_b || len_a + len_b != len)
    {
        cout << "NO" << '\n';
        return;
    }

    map<int, long long> pocty;
    map<int, long long> mensie_pocty;

    vyrob_pocty(pocty, n);
    vyrob_pocty(mensie_pocty, a);
    vyrob_pocty(mensie_pocty, b);

    for (long long i = 0; i <= 9; i++) {
        if (pocty[i] != mensie_pocty[i]) {
            cout << "NO" << '\n';
            return;
        }
    }

    cout << "YES" << endl;
    return;
}

int main(){
    long long t;
    cin >> t;

    while (t--) test_case();
}