#include <bits/stdc++.h>
using namespace std;
int main(){
  int n;
  long long m;
  cin >> n >> m;
  vector<long long> a(n), da(n), b(n), db(n);
  for (int i = 0; i < n; i++){
    cin >> a[i] >> da[i] >> b[i] >> db[i];
  }
  vector<long long> T;
  T.push_back(0);
  T.push_back(m + 1);
  for (int i = 0; i < n; i++){
    if (b[i] >= a[i] && db[i] < da[i]){
      long long t = (b[i] - a[i] + da[i] - db[i]) / (da[i] - db[i]);
      if (0 <= t && t <= m){
        T.push_back(t);
      }
    }
    if (b[i] < a[i] && da[i] < db[i]){
      long long t = (a[i] - b[i] + db[i] - da[i] - 1) / (db[i] - da[i]);
      if (0 <= t && t <= m){
        T.push_back(t);
      }
    }
  }
  for (int i = 0; i < n; i++){
    for (int j = 0; j < n; j++){
      if (a[i] > a[j] && da[i] < da[j]){
        long long t = (a[i] - a[j] + da[j] - da[i]) / (da[j] - da[i]);
        if (0 <= t && t <= m){
          T.push_back(t);
        }
      }
      if (b[i] > b[j] && db[i] < db[j]){
        long long t = (b[i] - b[j] + db[j] - db[i]) / (db[j] - db[i]);
        if (0 <= t && t <= m){
          T.push_back(t);
        }
      }
    }
  }
  sort(T.begin(), T.end());
  T.erase(unique(T.begin(), T.end()), T.end());
  int cnt = T.size() - 1;
  unsigned long long ans = 0;
  for (int i = 0; i < cnt; i++){
    vector<__int128_t> A(n), B(n);
    for (int j = 0; j < n; j++){
      A[j] = a[j] + (__int128_t) da[j] * T[i];
      B[j] = b[j] + (__int128_t) db[j] * T[i];
    }
    vector<int> c1, c2;
    for (int j = 0; j < n; j++){
      if (B[j] >= A[j]){
        c1.push_back(j);
      } else {
        c2.push_back(j);
      }
    }
    sort(c1.begin(), c1.end(), [&](int x, int y){
      return A[x] < A[y];
    });
    sort(c2.begin(), c2.end(), [&](int x, int y){
      return B[x] > B[y];
    });
    vector<int> c;
    for (int j : c1){
      c.push_back(j);
    }
    for (int j : c2){
      c.push_back(j);
    }
    vector<__int128_t> LA(n), LB(n);
    __int128_t ca = 0, cb = 0;
    for (int j = 0; j < n; j++){
      LA[j] = ca - da[c[j]];
      LB[j] = cb - a[c[j]];
      ca = LA[j] + db[c[j]];
      cb = LB[j] + b[c[j]];
    }
    vector<pair<__int128_t, __int128_t>> L(n);
    for (int j = 0; j < n; j++){
      L[j] = make_pair(LA[j], -LB[j]);
    }
    sort(L.begin(), L.end(), greater<pair<__int128_t, __int128_t>>());
    for (int j = 0; j < n; j++){
      L[j].second *= -1;
    }
    auto cross = [&](pair<__int128_t, __int128_t> P1, pair<__int128_t, __int128_t> P2){
      __int128_t a1 = P1.first;
      __int128_t b1 = P1.second;
      __int128_t a2 = P2.first;
      __int128_t b2 = P2.second;
      return (b1 - b2 + a2 - a1) / (a2 - a1);
    };
    vector<pair<__int128_t, __int128_t>> LH;
    LH.push_back(L[0]);
    for (int j = 1; j < n; j++){
      if (L[j].first != L[j - 1].first){
        while (LH.size() >= 3){
          pair<__int128_t, __int128_t> L1 = LH[LH.size() - 2];
          pair<__int128_t, __int128_t> L2 = LH[LH.size() - 1];
          pair<__int128_t, __int128_t> L3 = L[j];
          if (cross(L1, L2) > cross(L2, L3)){
            LH.pop_back();
          } else {
            break;
          }
        }
        LH.push_back(L[j]);
      }
    }
    int cnt2 = LH.size();
    vector<long long> C(cnt2 - 1);
    for (int j = 0; j < cnt2 - 1; j++){
      C[j] = cross(LH[j], LH[j + 1]);
    }
    for (int j = 0; j < cnt2; j++){
      long long mn = T[i], mx = T[i + 1] - 1;
      if (j > 0){
        mn = max(mn, C[j - 1]);
      }
      if (j < cnt2 - 1){
        mx = min(mx, C[j] - 1);
      }
      if (mn <= mx){
        unsigned long long as;
        if (mn % 2 == mx % 2){
          as = (unsigned long long) ((mn + mx) / 2) * (unsigned long long) (mx - mn + 1);
        } else {
          as = (unsigned long long) ((mx - mn + 1) / 2) * (unsigned long long) (mn + mx);
        }
        ans += (unsigned long long) (-LH[j].first) * as;
        ans += (unsigned long long) (-LH[j].second) * (unsigned long long) (mx - mn + 1);
      }
    }
  }
  cout << ans << endl;
}