#include <bits/stdc++.h>
int main() {
  int a, b, c, x, y;
  int sum = 0;
  scanf("%d %d %d %d %d", &a, &b, &c, &x, &y);
  int i;
  if ((a + b) / 2 > c) {
    if (x >= y) {
      sum = sum + (x - y) * a + y * c * 2;
    } else {
      sum = sum + (y - x) * b + x * c * 2;
    }
  } else {
    if (x >= y) {
      sum = sum + (x - y) * a + y * (a + b);
    } else {
      sum = sum + (y - x) * b + x * (a + b);
    }
  }
  printf("%d\n", sum);
  return 0;
}
