#include <bits/stdc++.h>
using namespace std;
const int maxn = 1005;
int a[maxn];
double dis(double x1, double y1, double x2) {
  return sqrt((x1 - x2) * (x1 - x2) + y1 * y1);
}
int main() {
  int n;
  double v1, v2;
  scanf("%d%lf%lf", &n, &v1, &v2);
  for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
  double x, y;
  cin >> x >> y;
  double ans2 = dis(x, y, a[2]) / v2 + a[2] / v1;
  int ans1 = 2;
  for (int i = 3; i <= n; i++) {
    double tmp = a[i] / v1 + dis(x, y, a[i]) / v2;
    if (tmp <= ans2) ans2 = tmp, ans1 = i;
  }
  cout << ans1 << endl;
}
