#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;
 
ifstream fin("secv2.in");
ofstream fout("secv2.out");
 
const int MAX_SIZE = 50001;
const int MIN_SUM = -1250000001;
int sp[MAX_SIZE];
 
int main() {
    int n, v[MAX_SIZE], k;
    fin >> n >> k;
    for (int i = 1; i <= n; ++i) {
        fin >> v[i];
        sp[i] = sp[i - 1] + v[i];
    }
    int min = 0, maxSum = MIN_SUM, minIndex = 0, startIndex = 0, stopIndex = 0;
    for (int i = 1; i <= n; ++i) {
        if (sp[i] > maxSum && i >= k) {
            maxSum = sp[i];
            startIndex = 1;
            stopIndex = i;
        }
        if (sp[i] - min > maxSum && i - minIndex >= k) {
            maxSum = sp[i] - min;
            startIndex = minIndex + 1;
            stopIndex = i;
        }
        if (min > sp[i]) {
            min = sp[i];
            minIndex = i;
        }
    }
    fout << startIndex << " " << stopIndex << " " << maxSum;
}