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