#include <iostream>
#include <vector>

using namespace std;

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

int main()
{
    cin >> n >> m >> tav;
    x.resize(n + 1);
    x[m].lat = true;
    for (i = 1; i <= n; ++i)
    {
        cin >> x[i].tav;
    }
    for (i = 1; i <= n; ++i)
    {
        if (i == 1)
        {
            megold.push_back(i);
            x[i].lat = true;
            a = i;
        }
        else if (i == m)
        {
            a=i;
            megold.push_back(i);
        }
        else
        {
            if (x[i].tav - x[a].tav >= tav)
            {
                megold.push_back(i);
                a = i;
            }
        }
    }
    cout << megold.size()<<"\n";
    for (auto& e : megold)
    {
        cout << e << " ";
    }
    return 0;
}