#include<fstream>
using namespace std;
ifstream fi("secv2.in");
ofstream fo("secv2.out");

const int maxn = 50004;

int st,dr,sol,suma,minim;
int i,k,n,x,s[maxn];

int main(){
    fi>>n>>k;
    for(i=1;i<=n;i++){ fi>>x; s[i]=s[i-1]+x; }
    
    sol=s[k]; 
    st=1;
    dr=k;
    minim=0;
    
    for(i=k+1;i<=n;i++){
                        if(s[i-k]<minim){
                                         minim=s[i-k];
                                         st=i-k+1;
                                        }
                                        
                        suma=s[i]-minim;
                        if(suma>sol){
                                     sol=suma;
                                     dr=i;
                                    }
                       }
    
    fo<<st<<" "<<dr<<" "<<sol;
    
    fi.close();
    fo.close();
    return 0;
}