#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000000007
#define INF2 1000000000000000000


int main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
	int L[3];
	rep(i, 3) cin >> L[i];
	int R[3];
	R[0] = L[0] + L[1];
	R[1] = L[1] + L[2];
	R[2] = L[2] + L[0];
	int color[3];
	rep(i, 3) cin >> color[i];
	int ans = INF;
	sort(color, color + 3);
	do {
		int tmp = 0;
		rep(i, 3) tmp += R[i] * color[i] * 2;
		ans = min(ans, tmp);
	} while (next_permutation(color, color + 3));
	cout << ans << endl;



    return 0;
}