const int N = 1010;
const int oo=0x3f;
const int mod=1e9+7;
const int base=311;
const double EP=1e-9;
int n,a[N],vb,vs,u,v;
double kc(int x, int u1, int v1){
    int dx=abs(x-u1);
    int dy=abs(v1);
    return sqrt(dx*dx+dy*dy);
}
double f(int x){
    double t1=x/vb;
    double t2=kc(x,u,v)/vs;
    return t1+t2;
}
void init(){
  FAST;
  if (fopen(TASK".INP","r")){
    READFILE;
    WRITEFILE;
  }
  cin >> n >> vb >> vs;
  For(i,1,n){
    cin >> a[i];
  }
  cin >> u >> v;
}
signed main()
{
  init();
  pair<double,double> ans;
  ans.fi=ans.se=10000000;
  int id=0;
  For(i,2,n){
    double res=f(a[i]);
    if (ans.fi>res) {
        id=i;
        ans.fi=res;
        ans.se=kc(a[i],u,v);
    } else if (abs(ans.fi-res)<EP) {
        if (ans.se<kc(a[i],u,v)) {
            ans.se=kc(a[i],u,v);
            id=i;
        }
    }
  }
  cout << id;
  return 0;
}