#include <iostream.h>
void main() {
  int a[50], b[50], n, i, s = 0, k = 0;
  cin >> n;
  for (i = 1; i <= n; i++)
    cin >> a[i];
  for (i = 1; i <= n; i++)
    cin >> b[i];
  for (i = 1; i <= n; i++)
    if (a[i] % 2 == 0) {
      s += a[i];
      k++;
    }
  float p = (float)s / k;
  s = 0;
  for (i = 1; i <= n; i++)
    if (b[i] < p)
      s = s + b[i];
  cout << s;
}