#include<fstream>
using namespace std;
ifstream f("secv2.in"); ofstream g("secv2.out");
const int MAX = 50005;
const int fF = 0x3f3f3f3f;
int N, K, mfim, best = -fF, start, stop, pozMfim, S[MAX];
int main()
{   f >> N >> K;
    for(int i = 1, X; i <= N; i++) 
	{   f >> X;
        S[i] = S[i - 1] + X;
        if(i >= K)
		{
            if(mfim > S[i - K]) {mfim = S[i - K]; pozMfim = i - K;}
            if(S[i] - mfim > best) {best = S[i] - mfim; start = pozMfim + 1; stop = i;}
        }
    }
    g << start << " " << stop << " " << best << "\n";
	g.close(); return 0;
}