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

bool ok(const vector<int>& l1, const vector<int>& l2) 
{
    set<int> d1(l1.begin(), l1.end());
    set<int> d2(l2.begin(), l2.end());
    
    for (int i = 1; i <= 31; i++) 
    {
        int tens = i / 10;
        int units = i % 10;
        if ((d1.count(tens) && d2.count(units)) || (d1.count(units) && d2.count(tens)))
        {
            continue;
        } 
        else 
        {
            return false;
        }
    }
    return true;
}


int main() 
{
    int T;
    cin >> T;

    while (T--) 
    {
        int N, M;
        cin >> N >> M;

        vector<int> l1(N), l2(M);
        for (int i = 0; i < N; i++)
        {
            cin >> l1[i];
        }
        for (int i = 0; i < M; i++) 
        {
            cin >> l2[i];
        }

        if (ok(l1, l2)) 
        {
            cout << "YES" << endl;
        } 
        else 
        {
            cout << "NO" << endl;
        }
    }

    return 0;
}