#include <iostream>
#include <math.h>
#include <map>

int main() {
    int t;
    std::cin>>t;

    while(t--)
    {
        int n, a, b;
        std::cin>>n>>a>>b;

        int countDA = log10(a) + 1, countDB = log10(b) + 1, countDN = log10(n) + 1;

        if(n != a*b || (a % 10 == 0 && b % 10 == 0) || ( countDN != countDA + countDB ) || countDA != countDB ) {
            std::cout<<"NO\n";
            continue;
        }

        std::map<int, int> digitsN;
        while(n) {
            digitsN[n%10]++;

            n/=10;
        }

        bool flag = true;

        while(a)
        {
            auto el = digitsN.find(a%10);
            if(el == digitsN.end() || el->second <= 0) {
                std::cout<<"NO\n";
                flag = false;
                break;
            }
            else
                el->second--;

            a /= 10;
        }

        while(flag && b)
        {
            auto el = digitsN.find(b%10);
            if(el == digitsN.end() || el->second <= 0) {
                std::cout<<"NO\n";
                flag = false;
                break;
            }
            else
                el->second--;

            b /= 10;
        }

        if(flag)
        {
            std::cout<<"YES\n";
        }
    }
}