#include <fstream>

using namespace std;

ifstream fin("secv2.in");
ofstream fout("secv2.out");


int n,k,st,dr,maxim,a,start,sc,s[50005],v[50005];

int main()
{
    fin>>n>>k;

    for ( int i=1 ; i<=k ; i++ ){
        fin>>v[i];
        s[i]=s[i-1]+v[i];
    }

    sc = s[k];
    start=st=1;
    dr=k;

    for ( int i=k+1 ; i<=n ; i++ ){
        fin>>v[i];
        s[i]=s[i-1]+v[i];
        if ( s[i]-s[i-k] > sc+v[i] ){
            start=i-k+1;
            sc=s[i]-s[i-k];
        }
        else
            sc+=v[i];
        if ( sc > maxim ){
            st=start;
            dr=i;
            maxim=sc;
        }

    }

    fout<<st<<' '<<dr<<' '<<maxim;

}