#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic warning "-Wunused-function"
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;

} int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  VI x(n), y(n);
  rep(i, n) cin >> x[i] >> y[i];
  auto cross = [&](int i, int j) {
    return x[i] * y[j] - y[i] * x[j];
  };
  constexpr int INF = 1001001001;
  VVI d(n, VI(n, -INF));
  rep(i, n) rep(j, n) if (j != i) rep(k, n) if (k != i && k != j) {
    chmax(d[i][k], cross(i, j) + cross(j, k));
  }
  int ans = 0;
  rep(i, n) rep(j, n) if (j != i) chmax(ans, d[i][j] + d[j][i]);
  cout << ans << '\n';
}