#include <bits/stdc++.h>
using namespace std;
int n, a, b, x[105], ex, ey;
double sum(int st) {
  return st * 1.0 / a +
         sqrt((ex * 1.0 - st) * (ex * 1.0 - st) + ey * 1.0 * ey) * 1.0 / b;
}
int slove() {
  int ans = 2;
  double time = sum(x[2]);
  for (int i = 3; i <= n; ++i) {
    double tp = sum(x[i]);
    if (tp < time || tp == time && abs(ex - x[i]) < abs(ex - x[ans])) {
      time = tp;
      ans = i;
    }
  }
  return ans;
}
int main() {
  scanf("%d%d%d", &n, &a, &b);
  for (int i = 1; i <= n; ++i) {
    scanf("%d", &x[i]);
  }
  scanf("%d%d", &ex, &ey);
  int ans = slove();
  printf("%d\n", ans);
  return 0;
}
