#include <bits/stdc++.h>
using namespace std;
ifstream f("secv2.in");
ofstream g("secv2.out");

int n, k;
long long a[50001], sp[50001];
long long s, sultim, maxim = -100000000000000, st, dr;
int main(){
    f >> n >> k;
    int poz = 1;
    for (int i = 1; i <= n; i++){
       f >> a[i];
       if(s < sultim) {
        s = sultim;
        poz = i - k + 1;
       }
       s += a[i];
       sultim += a[i];
       if(i - k + 1 >= 1) {
        sultim -= a[i - k + 1];
       }
       if(s > maxim && i >= k) {
        maxim = s;
        st = i;
        dr = poz;
       }
    }
       g << dr << " " << st <<"  " << maxim;}