#define _GLIBCXX_FILESYSTEM
#include<bits/stdc++.h>
#define INF 1000000000
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
int n, k, i, x, pmaxim, umaxim, minim, maxim, p, s[50010];
int main(){
    fin >> n >> k;
    minim = INF;
    maxim = -INF;
    for(i = 1; i <= n; i++){
        fin >> x;
        s[i] = s[i - 1] + x;
        if(i >= k){
            if(s[i - k] < minim){
                minim = s[i - k];
                p = i - k;
            }
            if(s[i] - minim > maxim){
                maxim = s[i] - minim;
                pmaxim = p + 1;
                umaxim = i;
            }
        }
    }
    fout << pmaxim << ' ' << umaxim << ' ' << maxim;
	return 0;
}