#include <fstream>

using namespace std;

const int N = 50000;
const int INF = 2e9;

int v[N+1];

int main()
{
    ifstream in("secv2.in");
    ofstream out("secv2.out");
    int n, k, sc = -1, sk = 0, smax = -INF, p = 1, stmax, drmax;
    in >> n >> k;
    for (int i = 1; i <= n; i++)
    {
        in >> v[i];
        sk += v[i];
        if (i > k)
        {
            sk -= v[i-k];
        }
        if (sk > sc + v[i])
        {
            sc = sk;
            p = i - k + 1;
        }
        else
        {
            sc += v[i];
        }
        if (i >= k && sc > smax)
        {
            smax = sc;
            stmax = p;
            drmax = i;
        }
    }
    out << stmax << " " << drmax << " " << smax;
    in.close();
    out.close();
    return 0;
}