func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 2e5 + 7;   map<long long, int> G;   map<long long, map<long long, int> > multiMap;   int main() {     long long i, j, k, f1, f2, f3, f4, t1, t2, t3, t4;     long long n, m, T;     long long a, b;     cin >> n >> a >> b;     m = 0;     for (i = 1; i <= n; i++) {       cin >> t1 >> t2 >> t3;       f1 = a * t2 - t3;       m += G[f1] * 2;       m -= 2 * multiMap[t2][t3];       multiMap[t2][t3]++;       G[f1]++;     }     cout << m << endl;     return 0;   }   