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

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

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

    string nstr = to_string(n);
    string astr = to_string(a);
    string bstr = to_string(b);

    ll nlen = nstr.length();
    ll blen = bstr.length();
    ll alen = astr.length();

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

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

    if(nlen != alen + blen) {
        cout << "NO" << "\n";
        return;
    }

    if(alen != blen) {
        cout << "NO" << "\n";
        return;
    }

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

    ll chars[26] = {};
    for(int i = 0; i < 26; ++i) {
        chars[i] = 0;
    }

    for(char i : astr) {
        chars[i-1]++;
    }

    for(char i : bstr) {
        chars[i-1]++;
    }

    for(char i : nstr) {
        chars[i-1]--;
    }

    for(int i = 0; i < 26; ++i) {
        if(chars[i] != 0) {
            cout << "NO" << "\n";
            return;
        }
    }

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

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

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

    return 0;
}