#include <bits/stdc++.h>
#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <string>
#include <sstream>
#include <cmath>
#include <stack>
#include <queue>
#include <cctype>
#include <stdio.h>
#include <map>
#include <string.h>
#include <utility>

typedef long long ll;
using namespace std;

typedef pair<int, int> P;



int main() {

	int a,b,c;

	int red,blue,yellow;

	cin>>a>>b>>c>>red>>blue>>yellow;

	vector<int> around;

	around.push_back(2*a+2*b);
	around.push_back(2*a+2*c);
	around.push_back(2*b+2*c);

	sort(around.begin(),around.end());

	vector<int> rby;
	rby.push_back(red);
	rby.push_back(blue);
	rby.push_back(yellow);

	sort(rby.begin(),rby.end(),greater<int>());

	int ans=0;
	for(int i=0; i<3;i++){
		ans = ans+ around[i]*rby[i];
	}

	cout<<ans<<endl;
	return 0;
}