#include <fstream>

using namespace std;

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

int main()
{
    cin>>n>>k;
    for(int i = 1; i<=n; i++)
    {
        cin>>v[i];

        sp[i] = sp[i - 1] + (long long)v[i];
    }

    long long smax = sp[k];
    int st = 1;
    int dr = k;

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

        long long sum = (long long)sp[i] - (long long)sp[poz - 1];

        if(sum > smax)
        {
            smax = sum;
            st = poz;
            dr = i;
        }
    }

    cout<<st<<" "<<dr<<" "<<smax;

    return 0;
}