#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <atcoder/modint>
using namespace std;
using i32 = int;
using u32 = unsigned int;
using i64 = long long;
using u64 = unsigned long long;
#define rep(i,n) for(int i=0; i<(int)(n); i++)
const i64 INF = 1001001001001001001;

using Modint = atcoder::static_modint<998244353>;

int main(){
    int N; cin >> N;
    vector<i64> X(N), Y(N);
    rep(i,N) cin >> X[i] >> Y[i];
    i64 ans = 0;
    rep(i,N) rep(j,i){
        i64 dx = X[j] - X[i];
        i64 dy = Y[j] - Y[i];
        i64 l = 0, r = 0;
        rep(a,N){
            i64 f = (X[a] - X[i]) * dy - (Y[a] - Y[i]) * dx;
            l = min(l, f);
            r = max(r, f);
            ans = max(ans, (r-l));
        }
    }
    cout << ans << endl;
    return 0;
}



struct ios_do_not_sync{
    ios_do_not_sync(){
        ios::sync_with_stdio(false);
        cin.tie(nullptr);
    }
} ios_do_not_sync_instance;