#include <bits/stdc++.h>
using namespace std;

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

int a[50001];
int main()
{
    long long n, k, sf = 1, p = 0, ic = 1, smax = -922337203685477580;
    in>>n>>k;
    for(int i = 1; i<=n; i++)
    {
        in>>a[i];
        a[i]+=a[i-1];
    }
    for(int i = k; i<=n; i++)
    {
        if(a[p]>a[i-k])
            p = i-k;
        if(a[i] - a[p] > smax)
        {
            smax = a[i] - a[p];
            ic = p+1;
            sf = i;
        }
    }
    out<<ic<<" "<<sf<<" "<<smax;
    return 0;
}