#include <iostream>
#include <vector>
#include <fstream>
#define inf (1<<30)

using namespace std;

int main()
{
    ifstream f("secv2.in");
    ofstream g("secv2.out");

    int n,k,st,dr,max=-inf,x,p;

    vector<int> v;
    v.push_back(0);
    st=0;
    f >> n >> k;
    for(int i=1; i<k; i++)
    {
        f >> x;
        v.push_back(v[i-1]+x);
    }

    for(int i=k; i<=n; i++)
    {
        f >> x;
        v.push_back(v[i-1]+x);
        if (v[i-k]<v[st]) st=i-k;
        if (v[i]-v[st]>max)
        {
            max=v[i]-v[st];
            dr=i;
            p=st+1;
        }
    }

    g << p <<" " << dr << " " << max;
    f.close();
    g.close();
    return 0;
}