#include <bits/stdc++.h>

using namespace std;

ifstream fin("secv2.in");
ofstream fout("secv2.out");

int n, k;
int a[50005];

int main()
{
    int i, minim, smax, p, st, dr;
    fin >> n >> k;
    for(i = 1; i <= n; i++)
    {
        fin >> a[i];
        a[i] += a[i - 1];
    }
    smax = a[k]; minim = p = 0;
    st = 1; dr = k;
    for(i = k + 1; i <= n; i++)
    {
        if(minim > a[i - k])
        {
            minim = a[i - k];
            p = i - k;
        }
        if(smax < a[i] - minim)
        {
            smax = a[i] - minim;
            st = p + 1; dr = i;
        }
    }
    fout << st << " " << dr << " " << smax << '\n';
    return 0;
}