#include <iostream>
#include <fstream>

using namespace std;

ifstream in("secv2.in");
ofstream out("secv2.out");
int V[50005],SUM[50005];
int main(){
    int sum=0,bestSum=-10000000,x,n,dr=1,st=1,k,poz;
    in>>n>>k;
    for(int i=1;i<=n;i++){
        in>>V[i];
        SUM[i]=SUM[i-1]+V[i];
    }
    st=1;
    dr=k;
    sum=SUM[k-1];
    bestSum=SUM[k];
    for(int i=k;i<=n;i++){
        if(sum+V[i] > SUM[i]-SUM[i-k]){
            sum+=V[i];
        }
        else{
            poz=i-k+1;
            sum+=SUM[i]-SUM[i-k];
        }
        if(bestSum<sum){
            bestSum=sum;
            st=poz;
            dr=i;
        }
    }
    out<<st<<" "<<dr<<" "<<bestSum;
    return 0;
}