#include <fstream>
#include <limits.h>
using namespace std;
ifstream fin ("secv2.in");
ofstream fout ("secv2.out");
long long n,k,i,s,start,st,sf,mx,v[50010],suma[50010];
int main(){
    mx=INT_MIN;
    st=1;
    fin>>n>>k;
    sf=k;
    for(i=1;i<=n;i++){
        fin>>v[i];
        suma[i]=suma[i-1]+v[i];
    }
    for(i=1;i<=k;i++)
        s+=v[i];
    mx=s;
    for(i=k+1;i<=n;i++){
    if(s+v[i]<suma[i]-suma[i-k]){
        s=suma[i]-suma[i-k];
        st=i-k+1;
    }
    else
        s+=v[i];

    if(s>mx){
        mx=s;
        start=st;
        sf=i;
    }
    }

    fout<<start<<" "<<sf<<" "<<mx;


    return 0;
}