#include <bits/stdc++.h>
using namespace std;
double b[101];
double t[101];
int main() {
  int n, vb, vs;
  double sx, sy;
  double lx, ls;
  while (cin >> n >> vb >> vs) {
    for (int i = 1; i <= n; i++) {
      cin >> b[i];
    }
    cin >> sx >> sy;
    double ans = 1e30, ansi = -1;
    for (int i = 2; i <= n; i++) {
      lx = b[i];
      double a = sx - b[i];
      ls = sqrt(a * a + sy * sy);
      double t = lx / vb + ls / vs;
      if (t <= ans) {
        ans = t;
        ansi = i;
      }
    }
    cout << ansi << endl;
  }
  return 0;
}
