#include <bits/stdc++.h>
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
int sum[50005];
int n,k,smax,p,s,pi,pf;
#define X 2000000000
int main()
{
    fin >> n >> k;
    smax = -X;
    s = X;
    for (int i=1;i<=n;i++)
    {
        fin >> sum[i];
        sum[i] = sum[i-1] + sum[i];
    }
    for (int i=k;i<=n;i++)
    {
        if (sum[i-k]<s)
        {
            s = sum[i-k];
            p = i-k+1;
        }
        if (sum[i] - s>smax)
        {
            smax = sum[i] - s;
            pi = p;
            pf = i;
        }
    }
    fout << pi << " " << pf << " " << smax << '\n';
    return 0;
}