#include <fstream>
#define NM 50005

using namespace std;

int v[NM];

int main()
{
    ifstream f("secv2.in");
    ofstream g("secv2.out");
    int n, k;

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

    int mn = 1<<30, mx = -(1<<30), p;
    int rx, ry;

    for(int i = k; i <= n; ++i)
    {
        if(mn > v[i-k])
        {
            mn = v[i-k];
            p = i-k+1;
        }

        if(mx < v[i]-mn)
        {
            rx = p;
            ry = i;
            mx = v[i]-mn;
        }
    }

    g << rx << ' ' << ry << ' ' <<  mx << '\n';
}