#include <fstream>
#define ll long long
using namespace std;

int n,k;
ll s[50005];

int main()
{
    ifstream fin("secv2.in");
    ofstream fout("secv2.out");
    fin>>n>>k;
    int m;
    for(int i=1;i<=n;i++) {
        fin>>m;
        s[i]=s[i-1]+m;
    }
    ll smin=0,smax=-25000*(k+1);
    int pmin=0,st=1,dr=1;
    for(int i=k;i<=n;i++) {
        if(s[i]-smin>smax) {
            smax=s[i]-smin;
            st=pmin+1;
            dr=i;
        }
        if(s[i-k+1]<smin)
            smin=s[i-k+1],pmin=i-k+1;
    }
    fout<<st<<" "<<dr<<" "<<smax;
    return 0;
}