#include <bits/stdc++.h>
using namespace std;
int main() {
  long int a, b, c, x, y, z, k;
  scanf("%ld %ld %ld %ld %ld", &a, &b, &c, &x, &y);
  if (a + b < 2 * c)
    printf("%ld", a * x + b * y);
  else {
    if (x < y) {
      z = x;
      k = y - x;
      if (a < 2 * c)
        printf("%ld", z * c + a * k);
      else {
        printf("%ld", c * (z + 2 * k));
      }
    } else {
      z = y;
      k = x - y;
      if (b < 2 * c)
        printf("%ld", z * c + b * k);
      else {
        printf("%ld", c * (z + 2 * k));
      }
    }
    return 0;
  }
}
