func_code_string: #include <bits/stdc++.h>   using namespace std;   void solve() {     int n, m;     cin >> n >> m;     int arr[n], brr[m];     for (int i = 0; i < n; i++) {       cin >> arr[i];     }     for (int i = 0; i < m; i++) {       cin >> brr[i];     }     for (int i = 0; i < n; i++) {       for (int j = 0; j < m; j++) {         if (arr[i] == brr[j]) {           cout <<  YES  <<   n ;           cout << 1 <<     << arr[i] <<   n ;           return;         }       }     }     cout <<  NO  <<   n ;   }   int main() {     ios_base::sync_with_stdio(0);     cin.tie(NULL);     cout.tie(NULL);     ;     int t = 1;     cin >> t;     while (t--) solve();   }   