#include <bits/stdc++.h>
using namespace std;
long long n, i, j, a, b, c, k, x, y;
int main() {
  cin >> a >> b >> c >> x >> y;
  k = a * x + b * y;
  k = min(k, 2 * c * max(x, y));
  if (x > y)
    k = min(k, 2 * c * y + a * (x - y));
  else
    k = min(k, 2 * c * x + a * (y - x));
  cout << k;
}
