func_code_string: #include <bits/stdc++.h>   using namespace std;   int N, V, k, y;   vector<int> vec;   int main() {     cin >> N >> V;     for (int i = 1; i <= N; i++) {       cin >> k;       int x = 1000000000;       for (int j = 1; j <= k; j++) {         cin >> y;         x = min(x, y);       }       if (x < V) vec.push_back(i);     }     cout << vec.size() << endl;     for (int i = 0; i < vec.size(); i++) cout << vec[i] <<    ;     return (0);   }   