#include <fstream>
#include <iostream>
using namespace std;

int n, k, x, s[50001], min1 = 25001, max1 = -25001, lf, rg;
ifstream f ("secv2.in");
ofstream g ("secv2.out");
void Read();
void Write();

void Read()
{
    int i;
    f >> n >> k;
    for (i = 1; i <= n; ++i)
    {
        f >> x;
        s[i] = s[i-1]+x;
    }
    f.close();
}

void Write()
{
    int i;
    for (i = k; i <= n; i++)
    {
        if (min1> s[i-k])   {
            min1 = s[i-k];
            x = i-k;
        }
        if (s[i]- min1 > max1)    {
            max1 = s[i] - min1;
            lf = x+1;
            rg = i;
        }
    }

    g << lf <<"\t" << rg << "\t" << max1;
    g.close();
}

int main()
{
    Read();
    Write();
    return 0;
}