#include<fstream>
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
int n,v[50003],s[50003],i,k,sol1,sol2,minim,maxim,pmin;
int main(){
    fin>>n;
    fin>>k;
    s[0]=0;
    for(i=1;i<=n;i++){
        fin>>v[i];
        s[i]=s[i-1]+v[i];
    }
    maxim=-750000000;
    minim= 750000000;
    for(i=k;i<=n;i++){
        if(s[i-k]<=minim){
            minim=s[i-k];
            pmin = i-k;
        }
        if(s[i] - minim>maxim){
            sol1 = pmin+1;
            sol2=i;
            maxim=s[i]-minim;
        }
    }
    fout<<sol1<<" "<<sol2<<" "<<maxim;

return 0;
}