#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
int n; cin>>n;
vector<int> a(n), b(n);
for (int i=0; i<n; i++) cin>>a[i]>>b[i];
int ans=0;
//cout<<'\n';
for (int i=0; i<n; i++){
int aL=-1, bL=-1, aR=-1, bR=-1;
for (int j=i-1; j>=0; j--) if (a[j] < a[i]) {
aL=a[j];
break;
}
for (int j=i-1; j>=0; j--) if (b[j] < b[i]) {
bL=b[j];
break;
}
for (int j=i+1; j<n; j++) if (a[j] < a[i]) {
aL=a[j];
break;
}
for (int j=i+1; j<n; j++) if (b[j] < b[i]) {
bL=b[j];
break;
}
//cout<<a[i]<<' '<<b[i]<<'\n';
vector<pair<int,int>> cands = {{a[i], b[i]}, {a[i], bL}, {a[i], bR}, {aL, b[i]}, {aR, b[i]}, {aL, bL}, {aL, bR}, {aR,bL}, {aR,bR}};
for (auto [height, length]: cands) {
int l=-1, r=n;
for (int j=i; j>=0; j--) if (a[j]<height) {
l=max(l,j);
break;
}
for (int j=i; j>=0; j--) if (b[j]<length) {
l=max(l,j);
break;
}
for (int j=i; j<n; j++) if (a[j]<height) {
r=min(r,j);
break;
}
for (int j=i; j<n; j++) if (b[j]<length) {
r=min(r,j);
break;
}
l++, r--;
//if (height==15 and length==19){
// cout<<l<<' '<<r<<'\n';
//}
if (l<=r){
ans=max(ans, length*height*(r-l+1));
}
}
}
cout<<ans<<'\n';
}
