#include <fstream>
using namespace std;
ifstream in("secv2.in");
ofstream out("secv2.out");
int64_t n, k, sp[50002], best = -(1 << 30), mini = (1 << 30);
int64_t sMax = 0, st, dr, st_;
int main(){
    in>>n>>k;
    for(int i = 1; i <= n; i++)
        in>>sp[i], sp[i] += sp[i - 1];
    ///best = sp[k];
    for(int i = k; i <= n; i++){
        if(mini > sp[i - k])
            mini = sp[i - k], st_ = i - k + 1;
        if(best < sp[i] - mini)
            best = sp[i] - mini, st = st_, dr = i;
    }
    out<<st<<" "<<dr<<" "<<best;
    return 0;
}