#include <bits/stdc++.h>
using namespace std;
double dist(double x, double y, double a, double b) {
  return sqrt((x - a) * (x - a) + (y - b) * (y - b));
}
int main() {
  int n, vb, vs, x[150], xu, yu;
  cin >> n >> vb >> vs;
  for (int i = 0; i < int(n); i++) cin >> x[i];
  cin >> xu >> yu;
  double time = 1000000000;
  double d = 1000000000;
  int idx = 1;
  for (int i = 1; i < n; ++i) {
    double cdist = dist(x[i], 0, xu, yu);
    double ctime = (x[i] * 1.) / vb + cdist / vs;
    if ((ctime == time && cdist < d) || ctime < time) {
      d = cdist;
      time = ctime;
      idx = i;
    }
  }
  cout << (idx + 1) << endl;
  return 0;
}
