#include<bits/stdc++.h>
using namespace std;

ifstream fin("secv2.in");
ofstream fout("secv2.out");

const long long oo=1LL<<40;
const int NMAX=50005;

int n,k,a[NMAX];

int main()
{
    int i,poz=0,x,y;
    long long sum=0,sum1=0,mn=oo,mx=-oo;
    fin>>n>>k;
    for (i=1;i<=n;i++) fin>>a[i];
    for (i=1;i<=k;i++) sum+=a[i];
    for (i=k+1;i<=n;i++)
        {
            sum+=a[i];sum1+=a[i-k];
            if (sum1<mn)
                {
                    mn=sum1;
                    poz=i-k;
                }
            if ((sum-mn)>mx)
                {
                    mx=sum-mn;
                    x=poz+1;y=i;
                }
        }
    fout<<x<<" "<<y<<" "<<mx<<"\n";
    return 0;
}