#include <fstream>

#define INF 1000000000

using namespace std;

int n, k, i, x, pmaxim, umaxim, minim, maxim, p;
int s[50010];
int main () {
    ifstream fin("secv2.in");
    ofstream fout("secv2.out");
    fin>>n>>k;
    minim = INF;
    maxim = -INF;
    for (i=1;i<=n;i++) {
        fin>>x;
        s[i] = s[i-1] + x;
        if (i >= k) {
            if (s[i-k] < minim) {
                minim = s[i-k];
                p = i-k;
            }

            if (s[i]-minim > maxim) {
                maxim = s[i]-minim;
                pmaxim = p+1;
                umaxim = i;
            }
        }
    }
    fout<<pmaxim<<" "<<umaxim<<" "<<maxim;

    return 0;
}