#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 << endl;
  } else if (A > 2 * C && B > 2 * C && X >= Y) {
    cout << 2 * C * X << endl;
  } else if (A > 2 * C && B > 2 * C) {
    cout << 2 * C * Y << endl;
  } else if (X > Y && (A + B) > 2 * C) {
    cout << 2 * C * Y + A * (X - Y) << endl;
  } else {
    cout << 2 * C * X + B * (Y - X) << endl;
  }
}
