#include <bits/stdc++.h>
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
int n, s[50005], k;
short a[50005];

int main()
{
    int i, j, minn, smax = 0, st, dr, p;
    fin >> n >> k;
    for(i = 1; i <= n; i++)
        fin >> a[i];
    for(i = 1; i <= n; i++)
        s[i] = s[i - 1] + a[i];
    smax = s[k]; minn = 0; p = 0; st = 1, dr = k;
    for(i = k + 1; i <= n; i++)
    {
        if(minn > s[i - k])
        {
            minn = s[i - k];
            p = i - k;
        }
        if(smax < s[i] - minn)
        {
            st = p + 1;
            dr = i;
            smax = s[i] - minn;
        }
    }
    fout << st << " " << dr << " " << smax << "\n";
    return 0;
}