#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 (X > Y) {
      if (A < 2 * C) {
        cout << 2 * C * Y + A * (X - Y) << endl;
      } else {
        cout << 2 * C * X << endl;
      }
    } else if (X < Y) {
      if (B < 2 * C) {
        cout << 2 * C * X + A * (Y - X) << endl;
      } else {
        cout << 2 * C * Y << endl;
      }
    } else if (X == Y) {
      cout << 2 * C * X << endl;
    }
  }
  return 0;
}
