#include <fstream>
using namespace std;
ifstream cin("secv2.in");
ofstream cout("secv2.out");
int sum_part[50001];
int main()
{
    int n, i, k, x, poz = 1, pozmin = 1, pozmax, xmin = 0, xmax;
    cin >> n >> k;
    for(i = 1; i <= n; i ++){
        cin >> x;
        sum_part[i] = sum_part[i - 1] + x;
    }
    xmax = sum_part[k];
    pozmax = k;
    for(i = k + 1; i <= n; i ++){
        if(sum_part[i - k] < xmin){
            xmin = sum_part[i - k];
            poz = i - k + 1;
        }
        if(sum_part[i] - xmin > xmax){
            pozmin = poz;
            pozmax = i;
            xmax = sum_part[i] - xmin;
        }
    }
    cout << pozmin << " " << pozmax << " " << xmax;
    return 0;
}