#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) {
      if (a > 2 * c) {
        cout << 2 * c * x;
      } else {
        cout << 2 * c * y + a * (x - y);
      }
    } else {
      if (b > 2 * c) {
        cout << 2 * c * y;
      } else {
        cout << 2 * c * x + a * (y - x);
      }
    }
  }
  cout << endl;
}
