#include <fstream>
 
using namespace std;
 
ifstream fin("secv2.in");
ofstream fout("secv2.out");
 
long long n, k, pozmin, smin, suma = -2500000000005, st, dr;
long long v[50005], s[50005];
 
int main() {
    fin >> n >> k;
    for(int i = 1; i <= n; i++) {
        fin >> v[i];
        s[i] = s[i - 1] +v[i];
    }
    fin.close();
    for(int i = k; i <= n; i++) {
        if(suma < s[i] - smin) {
            suma = s[i] - smin;
            dr = i;
            st = pozmin+1;
        }
        if(s[i - k + 1] < smin) {
            smin = s[i - k+ 1];
            pozmin = i - k + 1;
        }
    }
    fout << st << " " << dr << " " << suma;
    fout.close();
    return 0;
}