#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c, x, y;
  cin >> a >> b >> c >> x >> y;
  int j;
  if ((a + b) <= c * 2)
    j = 0;
  else if (a >= c && b >= c)
    j = 2;
  else
    j = 1;
  if (j == 0) {
    cout << x * a + y * b << endl;
  } else if (j == 1) {
    if (x > y)
      cout << c * y * 2 + a * (x - y) << endl;
    else if (x < y)
      cout << c * x * 2 + b * (y - x) << endl;
    else
      cout << c * x * 2 << endl;
  } else {
    if (x > y)
      cout << c * x * 2 << endl;
    else
      cout << c * y * 2 << endl;
  }
  return 0;
}
