#include <bits/stdc++.h>

using namespace std;

ifstream fin("secv2.in");
ofstream fout("secv2.out");
int n, k, i, a[50002], sc, s;
int p1, p2, p, r = INT_MIN;

int main() {
    fin >> n >> k;
    for(i = 1; i <= n; i++) fin >> a[i];
    for(i = k; i <= n; i++) {
        sc += a[i] - a[i - k + 1];
        if(sc <= s + a[i]) s += a[i];
        else s = sc, p = i - k + 1;
        if(r < s) {
            r = s;
            p1 = p;
            p2 = i;
        }
    }
    fout << p1 << " " << p2 << " " << r;

    return 0;
}