#include <iostream>
#include <vector>
#include <set>
#include <queue>
#include <stack>
#include <math.h>
#include <cassert>
#include <bitset>
#include <map>
#include <algorithm>
#include <iterator>
#include <string>
#include <utility>
#include <numeric>
#include <regex>
#include <complex>
#include <atcoder/all>
using namespace atcoder;
using namespace std;
using ll=long long;
using ull=unsigned long long;
using P=pair<ll,ll>;
template<typename T>using minque=priority_queue<T,vector<T>,greater<T>>;
template<typename T>bool chmax(T &a,const T &b){return (a<b?(a=b,true):false);}
template<typename T>bool chmin(T &a,const T &b){return (a>b?(a=b,true):false);}
template<typename T1,typename T2>
ostream &operator<<(ostream &os,const pair<T1,T2>&p){
  os<<p.first<<" "<<p.second;
  return os;
}
template<typename T1,typename T2>
istream &operator>>(istream &is,pair<T1,T2>&p){
  is>>p.first>>p.second;
  return is;
}
template<typename T>
istream &operator>>(istream &is,vector<T> &a){
  for(auto &i:a)is>>i;
  return is;
}
#define reps(i,a,n) for(int i=(a);i<(n);i++)
#define rep(i,n) reps(i,0,n)
#define all(x) x.begin(),x.end()
ll myceil(ll a,ll b){return (a+b-1)/b;}
using R=long double;
using Point=complex<R>;
constexpr R eps=1e-12;
constexpr R pi=3.141592653589793238;
inline bool equal(const R &a,const R &b){
  return fabs(a-b)<eps;
}
Point unit_vector(const Point &a){return a/abs(a);}
R dot(const Point &a,const Point &b){//内積
  return a.real()*b.real()+a.imag()*b.imag();
}
R cross(const Point &a,const Point &b){//外積
  return a.real()*b.imag()-a.imag()*b.real();
}
Point rotate(const Point &a,const R t){
  return Point(cos(t)*a.real()-sin(t)*a.imag(),sin(t)*a.real()+cos(t)*a.imag());
}
struct Line{
  Point a,b;
  Line(Point a,Point b):a(a),b(b){}
  Line(R A,R B,R C){
    assert(!(equal(A,0)&&equal(B,0)));
    if(equal(A,0)){
      a=Point(0,C/B),b=Point(1,C/B);
    }
    else if(equal(B,0)){
      a=Point(C/A,0),b=Point(C/A,1);
    }
    else{
      a=Point(C/A,0),b=Point(0,C/B);
    }
  }
};
Point projection(const Line &line,const Point &p){
  long double t=dot(p-line.a,line.a-line.b)/norm(line.a-line.b);
  return line.a+(line.a-line.b)*t;
}
Point reflection(const Line &line,const Point &p){
  return p+(projection(line,p)-p)*(long double)2;
}
bool ON(const Point &a,const Point &b,const Point &p){
  if(a==p)return true;
  if(b==p)return true;
  if(!equal(cross(a-p,b-p),0))return false;
  return dot(a-p,b-p)<0;
}
Point crosspoint(const Line &a,const Line &b){
  long double c=cross(a.b-a.a,b.b-b.a);
  long double d=cross(a.b-a.a,a.b-b.a);
  if(equal(abs(c),0)&&equal(abs(d),0))return b.a;
  return b.a+(b.b-b.a)*d/c;
}
Line suityokunitoubunsenn(const Point &a,const Point &b){
  Point c=(a+b)*(long double)0.5;
  Point d=rotate(a-c,pi/2)+c;
  Line ret(c,d);
  return ret;
}
struct Circle{
  Point p;
  R r;
  Circle(Point p,R r):p(p),r(r){}
  Circle(Point a,Point b,Point c){
    assert(!equal(cross(b-a,c-a),0));
    Line x=suityokunitoubunsenn(a,b),y=suityokunitoubunsenn(a,c);
    p=crosspoint(x,y);
    r=abs(a-p);
  }
  bool in(const Point &a){
    return abs(a-p)<=r+eps;
  }
};
int main(){
  int n;
  cin>>n;
  vector<Point>a(n);
  rep(i,n){
    R x,y;
    cin>>x>>y;
    a[i]={x,y};
  }
  int ans=0;
  rep(i,n-1)reps(j,i+1,n){
    vector<R>s,t;
    rep(k,n){
      if(k==i||k==j)continue;
      R area=cross(a[i]-a[k],a[j]-a[k]);
      if(area>0)s.push_back(area);
      else t.push_back(-area);
    }
    sort(all(s),[&](auto x,auto y){return x>y;});
    sort(all(t),[&](auto x,auto y){return x>y;});
    if(s.empty()||t.empty())continue;
    chmax<int>(ans,s[0]+t[0]);
  }
  cout<<ans<<endl;
}