#include <bits/stdc++.h>
using namespace std;
void fileIO() {}
bool sortbysecdesc(const pair<long long, long long> &a,
                   const pair<long long, long long> &b) {
  return a.second > b.second;
}
int32_t main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  fileIO();
  long long T;
  T = 1;
  while (T--) {
    long long n, vb, vs;
    cin >> n >> vb >> vs;
    vector<long long> stop(n);
    for (long long &p : stop) {
      cin >> p;
    }
    long long xu, yu;
    cin >> xu >> yu;
    double t = INT_MAX;
    double t1;
    long long ans = 0;
    for (long long i = 1; i < n; i++) {
      t1 = (stop[i]) / double(vb) +
           sqrt(pow(stop[i] - xu, 2) + pow(yu, 2)) / double(vs);
      if (t1 <= t) {
        t = t1;
        ans = i + 1;
      }
    }
    cout << ans;
  }
  return 0;
}
