#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;

        if(n != a*b || (a % 10 == 0 && b % 10 == 0) || ((int)log10(n) + 1 != (int( log10(a) ) + int(log10(b)) + 2 ) ) ) {
            std::cout<<"NO\n";
            continue;
        }

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

            n/=10;
        }

        bool flag = true;

        while(a)
        {
            std::map<int, int> digitsNc = digitsN;
            auto el = digitsNc.find(a%10);
            if(el == digitsNc.end()) {
                std::cout<<"NO\n";
                flag = false;
                break;
            }

            a /= 10;
        }

        while(flag && b)
        {
            std::map<int, int> digitsNc = digitsN;
            auto el = digitsNc.find(b%10);
            if(el == digitsNc.end()) {
                std::cout<<"NO\n";
                flag = false;
                break;
            }

            b /= 10;
        }

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

        t--;
    }
}