func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAX_N = 1e5 + 1;   int main() {     {       ios_base::sync_with_stdio(0);       cin.tie(0);       cout.tie(0);     }     int t;     cin >> t;     while (t--) {       int n, m, k;       cin >> n >> m >> k;       priority_queue<pair<int, int>> pq;       for (int i = 0; i < n; ++i) {         pq.push({0, i + 1});       }       for (int i = 0; i < k; ++i) {         set<int> all;         for (int j = 0; j < n; ++j) {           all.insert(j + 1);         }         priority_queue<pair<int, int>> next;         for (int j = 0; j < n % m; ++j) {           cout << (n + m - 1) / m;           for (int l = 0; l < (n + m - 1) / m; ++l) {             cout <<     << pq.top().second;             all.erase(pq.top().second);             next.push({pq.top().first - 1, pq.top().second});             pq.pop();           }           cout <<   n ;         }         for (int j = 0; j < m - (n % m); ++j) {           cout << (n / m);           for (int l = 0; l < n / m; ++l) {             cout <<     << *all.begin();             all.erase(all.begin());           }           cout <<   n ;         }         while (!next.empty()) {           pq.push(next.top());           next.pop();         }       }     }     return 0;   }   