//Nguyen Huu Hoang Minh
#include <bits/stdc++.h>
#define sz(x) int(x.size())
#define all(x) x.begin(),x.end()
#define reset(x) memset(x, 0,sizeof(x))
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define N 2005
#define remain(x) if (x > MOD) x -= MOD
#define ii pair<int, int>
#define iiii pair< ii , ii >
#define viiii vector< iiii >
#define vi vector<int>
#define vii vector< ii >
#define bit(x, i) (((x) >> (i)) & 1)
#define Task "test"
#define int long long

using namespace std;

typedef long double ld;
const int inf = 1e10;
const int minf = -1e10;

int n;
double vb, vs;
double x[105];
double u, v;

void readfile()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);cout.tie(0);
    if (fopen(Task".inp","r"))
    {
        freopen(Task".inp","r",stdin);
        //freopen(Task".out","w",stdout);
    }
    cin >> n >> vb >> vs;
    for(int i=1; i<=n; i++) cin >> x[i];
    cin >> u >> v;
}

double dis(double x, double y, double u, double v){
    double dx = (x-u)*(x-u);
    double dy = (y-v)*(y-v);
    return sqrt(dx+dy);
}

double f(double x){
    double kc = x/vb;
    kc += dis(x,0,u,v)/vs;
    return kc;
}

void proc()
{
    double ans = 1e11;
    double cdis;
    int id;
    for(int i=2; i<=n; i++){
        double tmp = f(x[i]);
        if (tmp < ans){
            ans = tmp;
            cdis = dis(x[i],0,u,v);
            id = i;
        }
        else if (tmp==ans){
            double tdis = dis(x[i],0,u,v);
            if (tdis < cdis){
                id = i;
                cdis = tdis;
            }
        }
    }
    cout << id;
}

signed main()
{
    readfile();
    proc();
    return 0;
}