#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  double a[104];
  double che, ren;
  double x, y;
  cin >> n >> che >> ren;
  for (int i = 1; i <= n; i++) {
    cin >> a[i];
  }
  cin >> x >> y;
  double tim = 900000;
  int jie;
  double ju;
  for (int i = 2; i <= n; i++) {
    if (a[i] / che + sqrt((x - a[i]) * (x - a[i]) + y * y) / ren < tim) {
      jie = i;
      tim = a[i] / che + sqrt((x - a[i]) * (x - a[i]) + y * y) / ren;
      ju = sqrt((x - a[i]) * (x - a[i]) + y * y);
    } else if (a[i] / che + sqrt((x - a[i]) * (x - a[i]) + y * y) / ren ==
               tim) {
      if (ju > sqrt((x - a[i]) * (x - a[i]) + y * y)) {
        jie = i;
        tim = a[i] / che + sqrt((x - a[i]) * (x - a[i]) + y * y) / ren;
        ju = sqrt((x - a[i]) * (x - a[i]) + y * y);
      }
    }
  }
  cout << jie;
}
