#include <iostream>
using namespace std;
int main()
{
    int a, b, c, x, y;
    cin >> a >> b >> c >> x >> y;
    if (y > x)
    {
        int t = b;
        b = a;
        a = t;
        t = x;
        x = y;
        y = t;
    }
    c *= 2;
    if (c <= a && c <= b)
    {
        cout << c * x;
    }
    else if (c >= a+b)
    {
        cout << a * x + b * y;
    }
    else if (c < a + b && c > a)
    {
        cout << c * y + a * (x - y);
    }
    else
    {
        cout << c * x;
    }
    return 0;
}