#include <bits/stdc++.h>
#define ll long long
using namespace std;
ifstream f ( "secv2.in" );
ofstream g ( "secv2.out" );
ll n,k,sume[50004];
int main()
{   f>>n>>k;
    for(int i=1;i<=n;i++)
    {   int x;
        f>>x;
        sume[i]=sume[i-1]+x;
    }
    ll smin=(1e10),bestsum=-(1e10);
    int ind=0,start=0,finish=0;
    for(int i=1;i<=n;i++)
        if(i>=k)
        {   if(smin>sume[i-k])
            {   ind=i-k+1;
                smin=sume[i-k];
            }
            if(sume[i]-smin>bestsum)
            {   bestsum = sume[i]-smin;
                start=ind;
                finish=i;
            }
        }
    g<<start << ' '<<finish << ' '<<bestsum;
    return 0;
}