#include<bits/stdc++.h>
using namespace std;
int main(){
int a,b,c;
int x,y;
int ans=0;
cin >> a >> b >> c >> x >> y;
if(a+b >= c*2){
if(x > y){
ans = (x-y)*c*2;
cout << ans + y*b << endl;
}else if(x == y){
ans = x*c*2;
cout << ans << endl;
}else{
ans = (y-x)*c*2;
cout << ans + x*a << endl;
}
}
cout << << endl;
}else{
cout << a*x+y*b << endl;
}
return 0;
}