#include <iostream>
#include <fstream>
using namespace std;
int n,k,x,v[50003],i,j,cmax,indi,indi2,cmin=25000,sum;
ifstream in("secv2.in");
ofstream out("secv2.out");
void citire()
{
    v[0]=0;
    for(i=1;i<=n;i++)
    {
        in>>x;
        v[i]=v[i-1]+x;
    }
}
void cautare()
{
    for(i=k;i<=n;i++)
    {
        if(v[i-k]<v[j])j=i-k;
        sum=v[i]-v[j];
        if(sum>cmax)
        {
            cmax=sum;
            indi=j;
            indi2=i;
        }
    }
    out<<indi+1<<" "<<indi2<<" "<<cmax;
}
int main()
{
    in>>n>>k;
    citire();
    cautare();
    return 0;
}