#include <bits/stdc++.h>

using namespace std;

int main()
{
    iostream::sync_with_stdio(0);
    cin.tie(0);
    int n, telh, tav;
    vector<int> varos;
    cin >> n >> telh >> tav;
    int ertek;
    for(int i = 0; i < n; i++)
    {
        cin >> ertek;
        varos.push_back(ertek);
    }
    int elozo = telh;
    set<int> erint;
    if(elozo != 0) for(int i = telh-1; i >= 0; i--)
    {
        if(varos[elozo]-varos[i] >= tav)
        {
            elozo = i;
            erint.insert(i);
        }
    }
    erint.insert(telh-1);
    elozo = telh;
    if(elozo != n-1)
    for(int i = telh+1; i < n; i++)
    {
        if(varos[i]-varos[elozo] > tav)
        {
            elozo = i;
            erint.insert(i);
        }
    }
    cout << erint.size() << "\n";
    set<int>::iterator i;
    for(i = erint.begin(); i != erint.end(); ++i)
    {
        cout << *i+1 << " ";
    }

}