#include <bits/stdc++.h>
int main() {
  long long int a[102], n, vb, vs, i, x1, x2, f = 2;
  double t[102], temp;
  scanf("%lld%lld%lld", &n, &vb, &vs);
  for (i = 1; i <= n; i++) {
    scanf("%lld", &a[i]);
  }
  scanf("%lld%lld", &x1, &x2);
  for (int i = 1; i <= n; i++)
    t[i] = 1.0 * a[i] / vb + sqrt((a[i] - x1) * (a[i] - x1) + x2 * x2) / vs;
  temp = t[2];
  for (i = 2; i <= n; i++) {
    if (temp >= t[i]) {
      temp = t[i];
      f = i;
    }
  }
  printf("%lld\n", f);
  return 0;
}
