#include<fstream>
#include<algorithm>
using namespace std;
ifstream fi("secv2.in");
ofstream fo("secv2.out");
int n,x,y,sum,bst,ind,st,sf,i,k,A[50001];
int main()
{
    bst=-1000000000;
    fi>>n>>k;
    for(i=1; i<=n; i++)
    {
        fi>>x;
        A[i]=A[i-1]+x;
    }
    st=1;
    sf=k;
    sum=A[k];
    for(i=k+1; i<=n; i++)
    {
        if((A[i]-A[i-k])>(sum+A[i]-A[i-1]))
        {
            st=i-k+1;
            sf=i;
            sum=A[i]-A[i-k];
        }
        else
        {
            sum=sum+A[i]-A[i-1];
            sf=i;
        }
        if(bst<sum)
        {
            bst=sum;
            x=st;
            y=sf;
        }
    }
    fo<<x<<" "<<y<<" "<<bst;
    fi.close();
    fo.close();
    return 0;
}