func_code_string: #include <bits/stdc++.h>   using namespace std;   void fast() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);   }   void solve() {     int n, m;     cin >> n >> m;     map<vector<int>, int> tiles;     for (int i = 0; i < n; i++) {       vector<int> temp;       for (int j = 0; j < 4; j++) {         int a;         cin >> a;         temp.push_back(a);       }       tiles[temp]++;     }     if (m & 1) {       cout <<  NO n ;       return;     }     for (auto &i : tiles) {       if (i.first[1] == i.first[2]) {         cout <<  YES n ;         return;       }     }     cout <<  NO n ;   }   int main() {     fast();     int t;     cin >> t;     while (t--) solve();   }   