#include <iostream>
#include <vector>
#include <algorithm>
#include <climits>
using namespace std;
int main(){
  int l1,l2,l3,r,b,y;
  cin>>l1>>l2>>l3;
  cin>>r>>b>>y;
  vector<int> v;
  v.push_back(r);
  v.push_back(b);
  v.push_back(y);
  int x=INT_MAX;
  for(int i=0; i<3; ++i){
    rotate(v.begin(),v.begin()+1,v.end());
    int a=v[0];
    int b=v[1];
    int c=v[2];
    int y=2*(l1+l2)*a+2*(l2+l3)*b+2*(l3+l1)*c;
    if(x>y) x=y;
    int t=b;
    b=c;
    c=t;
    y=2*(l1+l2)*a+2*(l2+l3)*b+2*(l3+l1)*c;
    if(x>y) x=y;
  }
  cout<<x<<endl;
  return 0;
}