#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, ans, x, y;
  double vb, vs, bus[100], dist[100], Time[100], ANS[100], MIN1 = 99999999,
                                                           MIN2 = 99999999;
  cin >> n >> vb >> vs;
  for (int i = 0; i < n; i++) {
    cin >> bus[i];
  }
  cin >> x >> y;
  for (int i = 0; i < n; i++) {
    dist[i] = sqrt(((x - bus[i]) * (x - bus[i])) + y * y);
    Time[i] = dist[i] / vs;
  }
  for (int i = 1; i < n; i++) {
    ANS[i] = bus[i] / vb + Time[i];
  }
  for (int i = 1; i < n; i++) {
    if (ANS[i] <= MIN1) {
      if (dist[i] < MIN2) {
        MIN1 = ANS[i];
        MIN2 = dist[i];
        ans = i + 1;
      }
    }
  }
  cout << ans;
  return 0;
}
