// tuzijatek.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

struct adat
{
    long long tav;
    bool lat;
};
vector<long long>x;
vector<int>megold;
int i, n, m, tav,a;

int main()
{
    cin >> n >> m >> tav;
    x.resize(n + 1);
    megold.push_back(m);
    for (i = 1; i <= n; ++i)
    {
        cin >> x[i];
    }
    a = m;
    for (i = m - 1; i >= 1; --i)
    {
        if (x[a] - x[i] >= tav)
        {
            megold.push_back(i);
            a = i;
        }
    }
    a = m;
    for (i = m + 1; i <= n; ++i)
    {
        if (x[i] - x[a] >= tav)
        {
            megold.push_back(i);
            a = i;
        }
    }
    sort(megold.begin(), megold.end());
    cout << megold.size()<<"\n";
    for (auto& e : megold)
    {
        cout << e << " ";
    }
    return 0;
}
/*
6 4 100
0 70 110 210 230 500

*/
// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu

// Tips for Getting Started: 
//   1. Use the Solution Explorer window to add/manage files
//   2. Use the Team Explorer window to connect to source control
//   3. Use the Output window to see build output and other messages
//   4. Use the Error List window to view errors
//   5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
//   6. In the future, to open this project again, go to File > Open > Project and select the .sln file