#include <fstream>

using namespace std;

ifstream in("secv2.in");
ofstream out("secv2.out");
int n, k;
int sp[50005];

int main()
{
    in>>n>>k;

    int x;
    for(int i = 1; i<=n; i++)
    {
        in>>x;

        sp[i] = sp[i-1] + x;
    }

    int smin = 0;
    int smax = sp[k];
    int poz = 1;
    int st = 1;
    int dr = k;

    for(int i = k + 1; i<=n; i++)
    {
        if(sp[i-k] < smin)
        {
            smin = sp[i - k];
            poz = i - k + 1;
        }

        if(sp[i] - smin > smax)
        {
            smax = sp[i] - smin;

            st = poz;
            dr = i;
        }
    }

    out<<st<<" "<<dr<<" "<<smax;

    return 0;
}