#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;
  }
  if (x > y) {
    if (2 * c < a) {
      cout << 2 * c * x;
    } else {
      cout << 2 * c * y + (x - y) * a;
    }
  } else {
    if (2 * c < b) {
      cout << 2 * c * y;
    } else {
      cout << 2 * c * x + (y - x) * b;
    }
  }
  return 0;
}
