#include <fstream>

using namespace std;

const int Nmax = 5e4+5;
int start, stop, a[Nmax], ind, i, n, k, Min = INT_MAX, ans = INT_MIN;

int main()
{
    ifstream fin("secv2.in");
    ofstream fout("secv2.out");
    fin >> n >> k;
    for (int i = 1; i <= n; i++)
    {
        fin >> a[i];
        a[i] += a[i-1];
        if (i < k)
        {
            continue;
        }
        if (Min > a[i-k])
        {
            Min = a[i-k];
            ind = i - k;
        }
        if (a[i] - Min > ans)
        {
            ans = a[i] - Min;
            start = ind + 1;
            stop = i;
        }
    }
    fout << start << ' ' << stop << ' ' << ans;

    return 0;
}