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

#include <iostream>
#include <queue>

using namespace std;

int i, n, m, k, x[200001];
bool jo[200001];
priority_queue <pair <int, int>> st;

int main()
{
    cin >> m >> k;

    for (i = 1; i <= m; ++i)
    {
        cin >> x[i];

        st.push({ x[i],i });

        while (!st.empty() && st.top().second < i - k) st.pop();

        if (st.top().first <= x[i]) jo[i] = 1;
        //cout << st.top().first << "\n";
    }

    while (!st.empty()) st.pop();

    for (i = m; i >=1; --i)
    {
        st.push({ x[i],i });

        while (!st.empty() && st.top().second > i + k) st.pop();

        if (st.top().first > x[i]) jo[i] = 0;
        //cout << st.top().first << " ";
    }

    //cout << "\n";

    for (i = 1; i <= m; ++i)
    {
        if (jo[i])
        {
            cout << i;
            return 0;
        }
    }

    return 0;
}

// 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