#include <iostream>
#include <vector>
#include <set>
#include <unordered_set>
#include <map>
#include <unordered_map>
#include <cstdio>
#include <bitset>
#include <queue>
#include <deque>
#include <algorithm>
#include <numeric>
#include <cassert>
#include <functional>
#include <stack>
#include <cmath>
#include <string>
#include <complex>
#include <cassert>
#define REP(i, N) for (int i = 0; i < (int)N; i++)
#define FOR(i, a, b) for (int i = a; i < (int)b; i++)
#define ALL(x) (x).begin(), (x).end()

using namespace std;

template <class T>
bool chmax(T& a, const T& b) {
  if (a < b) {
    a = b;
    return 1;
  }
  return 0;
}
template <class T>
bool chmin(T& a, const T& b) {
  if (b < a) {
    a = b;
    return 1;
  }
  return 0;
}

int main() {
  int N;
  cin >> N;
  vector<int> X(N), Y(N);
  REP(i, N) cin >> X[i] >> Y[i];
  int ans = 0;
  REP(i, N) FOR(j, i + 1, N) {
    int l = 0, r = 0;
    REP(k, N) {
      chmax(l, (X[k] - X[j]) * (Y[i] - Y[j]) - (Y[k] - Y[j]) * (X[i] - X[j]));
      chmax(r, (X[k] - X[i]) * (Y[j] - Y[i]) - (Y[k] - Y[i]) * (X[j] - X[i]));
    }
    chmax(ans, l + r);
  }
  cout << ans << endl;
  return 0;
}