#include <bits/stdc++.h>
const long long int md = 998244353LL;
using namespace std;
long long int pwr(long long int a, long long int b, long long int mm) {
  long long int res = 1LL;
  while (b > 0) {
    if (b & 1) {
      res = (res * a) % mm;
    }
    b >>= 1;
    a = (a * a) % mm;
  }
  return res;
}
double a[10005];
signed main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  long long int n;
  double vb, vs;
  cin >> n >> vb >> vs;
  for (long long int i = 0; i < n; i++) {
    cin >> a[i];
  }
  double xx, yy;
  cin >> xx >> yy;
  double val = -1;
  long long int poss = -1;
  for (long long int i = 1; i < n; i++) {
    double pp = a[i] / vb;
    double pp2 = sqrt((a[i] - xx) * (a[i] - xx) + yy * yy);
    pp2 /= vs;
    if (val == -1 || pp + pp2 <= val) {
      val = pp + pp2;
      poss = i;
    }
  }
  cout << poss + 1 << endl;
  return 0;
}
