#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)
      cout << min(2 * C * X + B * (Y - X), 2 * C * Y) << endl;
    else if (Y < X)
      cout << min(2 * C * Y + A * (X - Y), 2 * C * X) << endl;
    else
      cout << C * X << endl;
  }
}
